How do nested functions get compiled?
memory,compiler-construction,nested-function
I attempt to answer this in broad terms. This type of issue arises in a number of languages that permit nested function definitions (including Ada and Pascal). Normally, a variable like "x" is allocated on the processor stack. That's the normal process in any language that permits recursion. When a...
Trying to return a True variable from a nested chain of functions (in Python)…
You can only return a value, not a name and a value. In other words, you cannot "return HaveBow = True"; all you can do is return True. There's no way to return a value and at the same time assign it to a variable that exists outside the function....
What is the benefit of nesting functions (in general/in Swift)
function,swift,conventions,code-organization,nested-function
So if the purported benefit is to "organize the code", why not just have the nested function independently, outside of the outer function? That, to me, seems more organized. Oh, I totally disagree. If the only place where the second function is needed is inside the first function, keeping...
Returning values from nested functions - JavaScript [duplicate]
javascript,google-maps,return,nested-function
You can't do that because of the asynchronous nature of the location API, instead you need to use a callback based approach where the callback function will be invoked once the locaion API returns the value. function getUserPosition(callback) { if (navigator.geolocation) { navigator.geolocation.getCurrentPosition( function (position) { callback(new google.maps.LatLng(position.coords.latitude, position.coords.longitude)); },...
Return from nested function [duplicate]
ios,swift,parse.com,nested-function
You misunderstand how async calls with completion blocks/closures work. You can't return a result in your function because at the time the function returns, the result doesn't exist yet. The function findObjectsInBackgroundFromLocalDataStoreIfPossible takes a closure (a block of code) as a parameter. It returns immediately, before the background network request...
calling objects in nested function R
r,object,nested-function,lexical-scope
The object finally is only in scope within the function complete(). If you want to do something further with the object you are returning, you need to store it in a variable in the environment you are working in (in this instance, the environment you are working in is the...
Are nested functions possible in VBA?
vba,parameter-passing,nested-function,inline-functions
VB.Net can do this, but I don't believe VBA can. Two features that might help you simplify this code in other ways are overloaded functions or optional parameters. Here's an example using optional parameters: Function complicatedFunction(x as Double, Optional param1 as Double = L, Optional param2 as Double = U)...
Javascript Call To Nested Function
Your setSize method is not defined as a member of the class here but as a function where the scope is limited to that function. There are many ways and documentation out there to explain how it works, but here you could have declared your function this way: function Div()...
While loop counter increasing “exponentially” in spite of using ++
javascript,while-loop,counter,nested-function
You calculate the next date based on $start_date and counter. However, in the while-loop $start_date is reassigned and thus not represent the start date anymore. Therefore it should not be incremented with counter, but only with one. A correct solution would be: while ($start_date !== $end_date) { var x =...
End execution without script closure by keypress?
loops,return,autohotkey,break,nested-function
If you want a controlled stop, i.e. at a certain point in the script, then you could use a hotkey to set a variable and test that variable in the script. When the variable has been set and the IF statement is true, you reset that variable and exit the...