how to find a specific objet in a liste of object (other way than a loop)
If you want set "Yes" to one of picture from pictures array, you should use code like this; $bestscorelike = 0; $bestPictureObject = null; foreach($pictures as $picture) { $scorelike = $picture->getScorelike(); if($scorelike > $bestscorelike) { /** * Now in the $bestPictureObject exists picture with scorelike less then current $picture */...
Spawn random objects without overlapping (Java)?
EDIT2 It seems that you still don't understand the problem with your function. It was addressed in the other answer but I'll try to make it more clear. public static void generateNewEnemy() { xIndexEnemyOld = xIndexEnemy; This is just wrong. You can't set the Old index without having actually used...
Vector of objects from different classes
c++,class,object,inheritance,vector
Option 1 cannot work because obs is a vector<observable*>^. You cannot push a object of type observable because you can only store pointers (observable*) in it. You could store such objects in a vector<observable> but you cannot store Energy objects in such vector. Option 2 cannot work because ecause obs...
Use of self when creating objects in Python
Well, your classes look like they should have been a function, but I'm assuming that's just the example. Having said that This is useful when your object needs to store both the values that constructed it, as well as something resulting from them: class addTwoNumbers1(object): def __init__(self, number1, number2): self.number1...
Access object variables dynamically in php
You can achieve this by using eval(), however I will not recommend this method as it is prone to remote code execution if the input is coming externally: $path = ''; foreach($configArray['type_1']['name'] as $chunks ){ $path .= '->'.$chunks; } // $config will have value of $obj->parent->user->profile->name->fullName eval('$config = $obj'.$path.';'); Instead...
Inner class declaration and initialization
java,class,object,nested,inner-classes
ClassOuter.DataInner value = outerObj.new ClassOuter.DataInner(); This syntax applies to inner classes (i.e. non static nested classes). If that's what you want, remove the static keyword from public static class DataInner. EDIT : Also change ClassOuter.DataInner value = outerObj.new ClassOuter.DataInner(); to ClassOuter.DataInner value = outerObj.new DataInner(); You don't specify the outer...
Is a Java class variable a reference to a class object?
obj is a reference to the object of type foo , your understanding is correct. In line 1 , JVM creates a new instance (ojbect) of type foo (new memory is allocated in the heap) , and obj now stores the reference to that memory location, lets assume that memory...
Javascript Image() object erroneously setting height and width to 0 sometimes
javascript,image,object,height,width
Sounds like your image hasn't loaded yet when you get its width or height. Then it will be 0. When you refresh, the image is in your browser cache and will load immediately so its width and height are available straight up. Use the onload() event of the Image object...
How to store the value in the object in JavaScript?
When you use .split() you will get a array. And to use it you should do: obj[0] and obj[1], and hope for the user to add name first and not colour first... If you don't want to use 2 different questionsa/promt you should do: var obj = {}; var parts...
I'm using AngularFire, How can I retrieve this “email”, “uid” data?
angularjs,object,firebase,angularfire
Let's have a look at your actual data: { "users": { "createdUser": { "simplelogin:11": { "-Js0q1mWTwK-AZDZyVdc": { "email": "[email protected]", "uid": "simplelogin:11" } }, "simplelogin:12": { "-Js0qpcW6jI9Yf3kplCs": { "email": "[email protected]", "uid": "simplelogin:12" } }, "simplelogin:13": { "-Js0qrEbzYnFOOWtnCbg": { "email": "[email protected]", "uid": "simplelogin:13" } } }, ... } } You can get...
php how to send this data threw curl
This is GoPay right? Do something like this: $fields = [ "payer" => [ "default_payment_instrument" => "BANK_ACCOUNT", "allowed_payment_instruments" => ["BANK_ACCOUNT"], "default_swift" => "FIOBCZPP", "contact" => [ "first_name" => "First", "last_name" => "Last", "email" => "[email protected]" ] ] ]; $json = json_encode($fields); curl_setopt($ch, CURLOPT_POSTFIELDS, $json); ...
Unhandled Exception when calling SipProfile.Builder from Android SIP Class
java,android,object,android-studio,compiler-errors
The problem is, SipProfile.Builder may fail at runtime. It depends on server not the code. Then we should always use it with try-catch block. This is the working code: try { String id = txtId.getText().toString(); String username = txtUsername.getText().toString(); SipProfile.Builder builder1 = new SipProfile.Builder(id, username); } catch(java.text.ParseException e){ e.printStackTrace(); }...
Get and add all properties of type Mname from a list of objects and add them dynamically too a drop down
c#,linq,list,object,properties
In a foreach loop the type of your loop variable is the type of the items in the collection, so you want: foreach (Monster m in monsterObjectList) ddlMonsters.Items.Add(new ListItem(m.MonsterName)); You could also bind the list as the data source: ddlMonsters.DataSource = monsterObjectList; ddlMonsters.DataTextField = "MonsterName"; ddlMonsters.DataBind(); ...
Java How create a set of object with two classes?
It sounds like a simple problem. You didn't need so much code: package collections; /** * Person * @author Michael * @link https://stackoverflow.com/questions/30958832/java-how-create-a-set-of-object-with-two-classes * @since 6/20/2015 5:06 PM */ public class Person { private final String name; public Person(String name) { if (name == null || name.trim().length() == 0) throw...
Object (Sprite) in 2D java game moves abnormally
You should assign the method parameters to fields, not other fields. public void setVelX(float velX) { this.velX = velX; } public void setVelY(float velY) { this.velY = velY; } ...
Need help converting JSON to C# Objects
c#,asp.net,json,object,serialization
This property: public Participants players { get; set; } doesn't correspond with the key participantFrames in the JSON string. You'll have to change the property name, or add the attribute [JsonProperty("participantFrames")] to it. Also, the class Event_Position is not used at the moment, nor do I see any occurrence in...
a object to object mapper compatible on Android
I have been using this , a mapper for pojos https://github.com/txusballesteros/android-transformer...
In Java, How do I cast a Realm Object into the class I wish to write to the Database?
android,class,object,casting,realm
All Realm classes extends RealmObject so you can use generics to accomplish it: public static <T extends RealmObject> void executeInsertInto(final Context context, final T passedObject){ Realm realm = Realm.getInstance(context); realm.executeTransaction(new Realm.Transaction() { @Override public void execute(Realm realm) { T itemToWrite = realm.copyToRealm(passedObject); } }); realm.close(); } ...
pretty print json directly in page from Express
Depending on what you're going for using browser extensions or a program like Postman will make it easier for you to develop against.
Adding a list of data to object inisde loop
Thanks to gillesc for helping me solve this, it now successfully checks for all the input that has been checked or selected by various multi select plugins and outputs to the inputValues object: $('input').each(function() { if($(this).closest('li').hasClass("checked") || $(this).closest('li').hasClass("active")) { var selectKey = $(this).attr('name'); if (!inputValues[selectKey]) { inputValues[selectKey] = []; }...
How do I remove duplicate objects in an array by field in Javascript?
javascript,arrays,sorting,object
there is the lodash library. You could use the uniq var array = [{ id: 1, name: 'kitten' }, { id: 2, name: 'kitten' },{ id: 3, name: 'cat' }]; var asd = _.uniq(array,'name'); console.log(asd); Gives an output: [ { id: 1, name: 'kitten' }, { id: 3, name: 'cat'...
Trouble converting from JSON to C# objects - how do the classes work?
This is JSON.net which is one of the most popular JSON framework for .NET. Basically the way it works you define classes that matches the JSON schema, and then it turns the json string into C# objects. The purpose is it makes it easier to parse the JSON data otherwise...
How to add key pairs to object literals using loop--WITHOUT overriding existing entries?
javascript,jquery,object,key,literals
Try this: var signState = {}; $("ul li input").each(function() { var set, name, value; set = $(this).parent().parent().attr('id'); name = $(this).attr('name'); value = $(this).val(); /* Create a fresh object if it doesn't exist, * otherwise assign it the existing one. */ signState[set] = signState[set] || {}; /* Again, assign a fresh...
Calling methods of an object that is already stored in an ArrayList
Following your long code, tt looks like it all boils down to a wrong usage of the Scanner class : while(loopcheck.equals("1")) { System.out.println("Press 1 to enter a new stock or press 2 to find the LIFO and FIFO dollar cost average for the number of shares sold"); input = in.next();...
Don't run Object animator [closed]
java,android,object,objectanimator,animator
The basic problem with your code, is that you created an array of ObjectAnimator's, but you did not fill the array with actual objects (all array elements are null by default). Your program is crashing because imganim[0] is null, and you are trying to call a method on a null...
Creating object name with dash
Wrap the property in curly braces and quotes: fetch_object()->{'ModelDesc-ENU'}; Although I suspect you also need to wrap the column name in ticks, too, as the dash is not a valid identifier characters and actually means you are subtracting ENU from ModelDesc. $style_name = $db2->query("SELECT `ModelDesc-ENU` FROM tlkpModel WHERE ModelID =...
How to see if given object matches one of the objects returned from firebase
var storedObject ={ '-JrYqLGTNLfa1zEkTG5J': { name: "John", age: "32" }, '-JrkhWMKHhrShX66dSWJ': { name: "Steve", age: "25" }, '-JrkhtHQPKRpNh0B0LqJ': { name: "Kelly", age: "33" }, '-JrkiItisvMJZP1fKsS8': { name: "Mike", age: "28" }, '-JrkiPqA8KyAMj2R7A2h': { name: "Liz", age: "22" } }; var givenObject = {name: "John", age: "32"}; This is how you...
Getting instance of object?
You're misusing Class#isInstance, which returns true if Date.class is an instance of value.getClass(): Determines if the specified Object is assignment-compatible with the object represented by this Class. This method is the dynamic equivalent of the Java language instanceof operator. The method returns true if the specified Object argument is non-null...
Moving all fields info from one object to another
As @OliverCharlesworth points out, it can't be done directly. You will either have to resort to reflection (though I wouldn't recommend it!) or a series of field-by-field assignments. Another option though, would be to switch from inheritance to composition: public class BetterThing implements IBetterObject { Thing delegate; public BetterThing(Thing t)...
Search inside objects javascript
var thisAuthData = authData.uid; //console.log(authData) var usersRef = new Firebase("https://fiery-heat-3475.firebaseio.com/users"); usersRef.on("value", function(snapshot) { for(var amount in snapshot.val()){ console.log(snapshot.val()[amount].uid); //here some if statement thingy's to check with your authData but you can do that yourself I guess ;) } ...
How to build out this complex Array based on this Simple Object
javascript,arrays,object,lodash
Here's what I came up with using just vanilla JavaScript and no lodash or underscore: function expand(simple) { var outerArray = [], innerArray, outerIndex = 1, innerIndex, outerObject, innerObject; while (("ticker" + outerIndex) in simple) { innerArray = []; innerIndex = 1; while (("t" + outerIndex + "_tag" + innerIndex)...
Object declaration in C++
This is a very tricky one, but you actually declare obj as a function, which takes no arguments and return an instance of A. Change to A obj; If you have a C++11 capable compiler (which are most these days, unless you run an older version, though some requires special...
Fill Javascript object with fixed length multidimensional array
javascript,arrays,object,multidimensional-array,fill
for(var c; c < 10; c++){ is your problem. You don't initialise c, so it is undefined, or later NaN, and those are used as property names for adding your arrays onto o[v]. Use instead: for(var c = 0; c < 10; c++){ ...
c++: Passing objects to functions
You need to create an object of some specialization of the template class xyz and an object of the type abc. For example int main() { abc a( 10, 20 ); xyz<int> x; x.some_func( &a ); } ...
Difference between two types of a super class instantiation in Java [duplicate]
java,object,java-ee,instantiation,superclass
The difference is for example if you have any information about document only in the document class, like, say, price. By doing Book book = new Book(); you won't be able to get the price of the book, so doing Document book = new Book(); will give you additional information...
Changing the property values of an object in an array using another property value
Not really sure what you're expecting here. If you have an array of nonspecific elements you're going to end up looping one way or another, unless the objects are always in the same order and can be accessed by their index. How are their IDs generated / how are they...
Javascript: Access function within deep object on parse
Because scope in which function2 is defined does not contain definition of object1. Then when you try to access object1.object2 it throws error because object1 is not defined
javascript dynamic structure with array or object
javascript,arrays,object,dynamic
You can first create an empty object and fill it as and when the data comes like users[user.id] = {}; For an example: var users = {}; var user = {id : 1}; //Data received(Just an example) users[user.id] = {}; var session = {id1 : 1.1}; //Data received users[user.id][session.id1] =...
make a div in a new created window
You were missing an else clause. And if you want to replace the entire content then innerHTML is what you're after. document.write will always just add. function stopwatch(sec){ if(sec < 1){ venster.document.body.innerHTML = "<h1>i will close!</h1>"; // Also this h1 wasn't closed setTimeout(venster.close ,1000); // And this was executed immediately...
Object Read-Only Properties
Why is assignment allowed, and if it's allowed, how can nothing happen? In this snippet there is no inferred scope, so I don't understand how something in JS can infer a private property. Because assignments (before strict mode) never throw and making it throw would violate that invariant that...
Is it possible to create a queue of object arrays in C++?
If the internal arrays are meant to be variable length or the length won't be known until run-time you could use std::queue<std::vector<Hooks>> Hooks_queue; If the size is fixed and known at compile time, you could use std::queue<std::array<Hooks, N>> Hooks_queue; Where N is the size of each array...
Merging and reordering two arrays of objects
javascript,arrays,object,javascript-objects
Here is an example using ES6 methods. /*global document, console, expect */ (function () { 'use strict'; var originalArray = [{ field: 'foo', hidden: true, sortable: false, template: '<div>#=text#</div>', width: '20px', propA: 'a', propB: 'b' }, { field: 'bar', hidden: false, sortable: false, template: '', width: '20%', propC: 'C' },...
Parsing JSON object within a JSON response [duplicate]
The returned object looks like: {"base":"GBP","date":"2015-06-18","rates":{"USD":1.5912}} So you should be able to use: res.rates.USD // 1.5912 ...
Trying to get property of non-object (valid json) [duplicate]
Try like below:- <?php $data = '[{"total":-4107717.58,"alerx":4,"currentYear":-4107717.58,"lastYear":0,"date":2015,"value":{"debit":0,"credit":4107717.58}}]'; $new_array = json_decode($data); echo "<pre/>";print_r($new_array); echo "<pre/>";print_r($new_array['0']->value); echo "<pre/>";print_r($new_array['0']->value->debit); echo "<pre/>";print_r($new_array['0']->value->credit); ?> Output:- https://eval.in/381395 Note:- change is $new_array['0']->value only....
meaning of the super keyword in the parent class python
You should always use super, because otherwise classes may get missed out, particularly in a multiple inheritance scenario (which is inevitable where mix-in classes are being used). For example: class BaseClass(object): def __init__(self): print 'BaseClass.__init__' class MixInClass(object): def __init__(self): print 'MixInClass.__init__' class ChildClass(BaseClass, MixInClass): def __init__(self): print 'ChildClass.__init__' super(ChildClass, self).__init__()...
What is this thing called in Java?
java,oop,object,inheritance,immutability
They are called enumarations. You can find detailed info here they are defined as: public enum Day { SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY } and used as: public class EnumTest { Day day; public EnumTest(Day day) { this.day = day; } public void tellItLikeItIs() { switch (day) {...
Javascript - accessing an object with duplicate names
I actually looked around and figured out how to do this. I found it under a different topic but figured that I might help anyone else with this specific question. To get to these multiple array items, you have to put in the index like this: console.log(jsonXML.ProfileGroup.File["0"].Profile.WayPt["0"].distance); When iterating through...
Unable to extract values from object array, to which javascript array was deserialized
c#,arrays,object,serialization
var serializedArray = new JavaScriptSerializer().Deserialize<object[]>(filter); foreach (var item in serializedArray) { if (item is string) { var element = item; } else foreach (var innerItem in (object[])item) { var element = innerItem; } } ...
MongoDB remove object from array deletes complete array
If you want to delete/pull only score = 6.676176060654615, you need to simply use following query : db.collection.update({"_id":0},{"$pull":{"scores":{score: 6.676176060654615}}}) If you want to find minimum value and remove it from your collection. You need to do this is two steps. For more details refer this...
Creation of object using abstraction fails, likely a simple fix I cannot see
java,object,constructor,abstraction
{0,0} can only be used by itself when you declare an int array variable (int[] var = {0,0};). Change Piece blackBishop = new Bishop('b', {0,0}); to Piece blackBishop = new Bishop('b', new int[] {0,0}); ...
How can I retrieve the object into an array in Javascript?
javascript,arrays,object,javascript-objects
function where(second, third) { var temp = []; var k = Object.keys(third)[0]; // expecting only one element! second.forEach(function (obj) { if (obj[k] === third[k]) { temp.push(obj); } }); return temp; } ...
Return two separate arrays from an object in JavaSript
Try: function keyValues(obj, keys){ return [keys = Object.keys(obj), keys.map(function(k){return obj[k]})] } var result = keyValues({k: 11, l: 12, m: 13}); document.write(JSON.stringify(result)) ...
Calling an object and its method from another object class method
javascript,class,oop,object,methods
Welcome to the world of javascript where you are not using it to just paint and moves boxes :) Coming to your question: //Initialize objects var spaceButton = new Navigation('#spaceWarp'); var stars1 = new Stars('#stars1'); var stars2 = new Stars('#stars2'); var stars3 = new Stars('#stars3'); The initialization of your objects...
Matlab - object orientated with abstract Interface - How creating object?
It is not clear what you want to do exactly and why you need an abstract class then a derived one, but assuming you really need all that for more purpose than you described, take the following into account: By definition in OOP, an abstract class cannot be instantiated. It...
NodeJS: trouble emitting array inside object to client
javascript,arrays,node.js,object
You've put the socket object inside the data you want to emit, clients clients.clients.push(socket); socket object is a complex structure, possibly containing circular references. The way io.emit works is that it first converts the data it needs to send in to JSON string by doing JSON.stringify(clients). Now JSON.stringify can't work...
Converting Object Names to Strings in AS2
string,object,for-loop,actionscript-2,movieclip
Your suggestion that the objects are stored as a string is incorrect. If you try using typeof before your trace(typeof _level0[objects]) you will see that its type is movieclip and your "_level0.potato" is string They will not be equal. But you can convert object reference to string using String(...) construct....
Excel vba code using ThisWorkbook.Sheets(1).Range not working, but Sheet1.Range works fine. Why?
There is no difference between the properties of Sheets(1) and Sheet1 as long as both are the same object - Worksheet Object in your case. You're getting that error because findValue Is Nothing. That is, it couldn't find the ID in the column. When using the Find method, it's best...
getting access to javascript object property beginning with number
Yes it's because it begins with a number. You can access that like this: rain['3h'] When you have object properties named with numbers or simbols, use the bracket notation....
Object.length undefined in javascript [duplicate]
That because coordinates is Object not Array, use for..in var coordinates = { "a": [ [1, 2], [8, 9], [3, 5], [6, 1] ], "b": [ [5, 8], [2, 4], [6, 8], [1, 9] ] }; for (var i in coordinates) { console.log(coordinates[i]) } or Object.keys var coordinates = {...
Extending JFrame - how does “super” keyword work?
new JFrame( "title" ) calls JFrame's constructor. It may call setTitle() (but it probably doesn't), or it may just set the internal variable used to hold the title. super.setTitle() is just a method call. If you have overridden setTitle(), it'll ignore your definition and call the same method on...
Reading and listing objects in the order they appear in the source file in R
There's no way to get the order of variable definition after sourcing the file without explicitly recording the order in the file itself. One way to do this would be to put the variables in a list.
odd results from nested for loops javascript
javascript,arrays,sorting,object
I think you are using splice incorrectly, regardless this is a bit over complicated try: for (var i in word) { var w = word[i].innerHTML; if (ls.indexOf(w)> -1) { word_string += w; } } ...
Dynamic creation of objects vs storing them as fields
There won't be any difference, since you've only changed the scope of the variables. Since you're not using the variables outside of the scope, the generated bytecode will be identical as well (you can try it out with javap). So use the second style for clarity. Edit: In fact if...
Jackson - Extract Data without Brackets, Commas, and =?
java,json,object,jackson,jackson-modules
ObjectMapper mapper = new ObjectMapper(); Map<String,Object> data = mapper.readValue(new File(FileName), Map.class); Map<String, Double> tags = (Map) data.get("SomeInput"); double value = 0; for (String tag : tags.keySet()) { value = tags.get(tag); //Here I get all the data from the tags inside the input. E.g.: 0.830168776371308 System.out.println(value); //It will print ADP, ADV...
Javascript setting object with variable [duplicate]
Prior to ES6 (the newest JavaScript standard), you could only do the following: var sortby = 'post_date'; var sort = {}; sort[sortby] = 'asc'; However, if you made sure that you can use ES6 features for what you're doing, this is also possible: var sortby = 'post_date'; var sort =...
Empty object in Javascript
You're making it a string with this statement: console.log('family: '+family[0]);. You're implicitly calling .toString() when you concat a string with a plain object. The string version of an object is [object Object]. It's not empty, don't worry. If you're going to show the string version of an object, you're probably...
Dynamically create all objects contained in file
java,object,dynamically-generated
Hi I am not sure this is what you want but I think this is regarding how you get all classes in the folder and once you get them then you can easily run in your program. First, You can't ask your students using the same name of the file...
How to set another object inside another object | JavaScript
basically just add another object inside it You're not adding an object inside it; you're adding a property. There are several ways. Object.defineProperty(myObject, 'test4', { value: 'test4 }) This will return the object, which could be handy. Or, of course, just myObject.test4 = 'test4' You can use the "merge"...
Object Variable or With Block Variable Not set in loop using find function
vba,excel-vba,loops,object,find
If the Cells.Find(What:="Run:" & i,... fails to find a match, the Select part of the statement will then cause the error. You should always store the result of a Find in a range variable and then test that for Nothing. Add this declaration to your code: Dim cellsFound As Range...
Javascript Sorting Array of Objects [duplicate]
javascript,arrays,sorting,object
You use a custom callback with the array method .sort(). Arr.sort(function(a, b) { return a.age - b.age; }); MDN reference page on .sort(). And, here's a working snippet: var Obj1 = {firstName: "John", lastName: "Doe", age: 46}; var Obj2 = {firstName: "Paul", lastName: "Smith", age: 22}; var Obj3 = {firstName:...
ActionScript: How to call an objects function within an array?
arrays,flash,object,actionscript
A Vector will let you easily call the functions of your objects which are stored in that vector. var vector:Vector.<YourObject> = new Vector.<YourObject>(); vector[0].yourObjectFunction(); http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/Vector.html Alternatively, you can cast the members of an Array to a specific type and then call the functions. (array[0] as YourObject).yourObjectFunction(); ...
Persist Object's value after copying in Java
By using the assignment statement, dataObj1 = dataObj;, dataObj1 refers to the exact same object as dataObj. The solution is to assign a copy of the object referenced by dataObj. One way to do this is via a copy constructor, something like: dataObj1 = new DataObjImpl(dataObj); Below is an example:...
How do I create multiple instances of a object in javascript during runtime?
Here's one way you can do it with a factory function Click Run code snippet to see it work. To finish inputting items, click OK with an empty line. // Shopper constructor function Shopper(firstName, lastName, email, items) { this.firstName = firstName; this.lastName = lastName; this.email = email; this.items = items;...
How can I traverse a multi level php object and unset the deepest node dynamically
Without an example of what you actually have, I'm assuming you have an array of comments, and inside of each comment could be an array of more comments inside the comments field. If this is the case you would be doing something along the lines of unset($object->comments[1]->comments[2]->comments[3]); This would unset...
sort list of objects in VB.NET by two elements
You could implement a custom IComparer(Of Passenger) for List.Sort: Class PassengerComparer Implements IComparer(Of Passenger) Public Function Compare(p1 As Passenger, p2 As Passenger) As Integer Implements System.Collections.Generic.IComparer(Of Passenger).Compare If p1.Age = p2.Age AndAlso p1.Name = p2.Name Then Return 0 ElseIf p1.Age <> p2.Age Then Return p1.Age.CompareTo(p2.Age) ElseIf p1.Name <> p2.Name Then...
Object property is undefined
Add module.exports to your gulpfile.config.js, like so # gulpfile.config.js var config = { src_path: "Client/" }; module.exports = config module.exports is the object that's returned as the result of a require call. ...
How can I get the original type of data after being processed by Object as Hash in JavaScript?
it could be easily done, just store object instead of 1 https://jsfiddle.net/uo8v55qf/1/ var singleNumber = function(nums) { var hash = {} for(var i=0;i<nums.length;i++) if (hash.hasOwnProperty(nums[i])) delete hash[nums[i]] else hash[nums[i]] = { value:nums[i], type: typeof nums[i]}; for(var x in hash) return hash[x]; } result = singleNumber(['123',123,'23']); console.log(result); console.log(result.value + ' type:'...
JavaScript objects: 'addEventListener is not a function'
javascript,html,object,canvas,mapping
Your specific error: 'Uncaught TypeError: elements[i].addEventListener is not a function' is because elements[i].addEventListener is undefined and thus is not a function. The reason it is undefined is because your elements array contains regular Javascript objects. Those objects do not have a .addEventListener() method. That is a method on DOM objects...
Java - How to only create an object with valid attributes?
java,validation,object,constructor
The standard practice is to validate the arguments in the constructor. For example: class Range { private final int low, high; Range(int low, int high) { if (low > high) throw new IllegalArgumentException("low can't be greater than high"); this.low = low; this.high = high; } } Side note: to verify...
initializing python object with nothing but keyword args
python,object,constructor,instantiation
What you're missing is that kwargs need to be explicitly retrieved by name. Here's a modified version of your code, to illustrate. Note the initialization of name and age. class Person(object): def __init__(self, **kwargs): self.name = kwargs.get('name') self.age = kwargs.get('age') # you'll probably want to check that all required #...
JavaScript Saving this. variable inside of image.onLoad [duplicate]
If I'm understanding you right, the usual answer is to use a variable to refer to this, which init then closes over: function InfoImage(path,title){ this.path = path; this.title = title; this.color = undefined; this.maxPixels = undefined; this.init = function(){ var canvas = document.querySelector("canvas"); var img_Color = new Image_Processing_Color(canvas); var img...
How to get the public objects
php,object,guzzle,rackspace-cloud,rackspace
It is a Guzzle\Http\Url object, and you will not be able to access its protected or private properties. The class is defined here, so you can use any of the public methods to access its state. You can also cast it to a string like so: $stringUrl = (string) $url;...
How to assign key to object literal when they keyname is represented by a variable?
javascript,jquery,variables,object,key
In the same way you already used it with optionSet1 – using the bracket notation: signState = {}; signState[optionSet1] = {}; signState[optionSet1][name1] = value1; ...
Socket.io error in sending arrays
javascript,arrays,object,socket.io
It probably has been sent correctly, you're just not seeing the whole object. This is due to Firefox collapsing objects when logged to console: If you click on the underlined object, the right panel should open and show you more details about the object....
Run class methods in different threads
java,multithreading,object,methods
public class HelloRunnable implements Runnable { private MyClass myClass; private boolean execMethod1; private boolean execMethod2; private boolean execMethod3; public HelloRunnable(MyClass myClass, boolean execMethod1, boolean execMethod2, boolean execMethod3) { this.myClass = myClass; this.execMethod1 = execMethod1; this.execMethod2 = execMethod2; this.execMethod3 = execMethod3; } public void run() { if(execMethod1) myClass.method1(); else if(execMethod2) myClass.method2();...
Search for object in multiple arrays in an object based on the ID with JavaScript
It seems that moments is an object whose properties are dates. Each date has an array of moment objects, and ID is unique to each moment. You can create an object whose keys are the IDs and values are references to the moment objects containing the ID: function generateIndex(moments) {...
Once again: JS functions and objects
How does JS know the difference between an object with a function property and a constructor to which properties have been added? There are different terminologies: Functions are objects which are Function instances. Callable objects are objects with an internal [[Call]] method. Constructors are objects with an internal [[Construct]]...
How to iterate an object and build a new one
Lookup in new array for customer and if found add project, otherwise add customer. var data = [ { "customer": "Customer 1", "project": "1" }, { "customer": "Customer 2", "project": "2" }, { "customer": "Customer 2", "project": "3" } ]; var newData = []; data.forEach(function (el, i) { var customer...
Object returns null
BanffMarathonRunner r1 = new BanffMarathonRunner("Elena", "Brandon", 341, 1); calls: // firstName = "Elena" // lastName = "Brandon" // min = 341 // yr = 1 public BanffMarathonRunner(String firstName, String lastName, int min, int yr) { super(firstName, lastName); // ... } which calls via super(...): // firstName = "Elena" // middleName...
python - When are WebSocketHandler and TornadoWebSocketClient completely deleted?
python,object,websocket,tornado,deletion
The WebSocket code currently contains some reference cycles, which means that objects are not cleaned up until the next full GC. Even worse, __del__ methods can actually prevent the deletion of an object (in python 3.3 and older: https://docs.python.org/3.3/library/gc.html#gc.garbage), so it's difficult to tell when things are actually getting deleted....
Use checkboxes to filter to a new array of objects - javascript
javascript,arrays,function,object,checkbox
You don't need to test if the state changes, because onchange only fires when the state changes. filterByJob just gets the corresponding checkbox element and tests whether it's checked or not. var array = [ {"date":"Jan 1", "job":"teacher"}, {"date":"Jan 1", "job":"lawyer"}, {"date":"Jan 2", "job":"doctor"}, {"date":"Jan 4", "job":"doctor"} ]; var newArray...