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Meaning of a semicolon in lambda expression

haskell,io,lambda,semicolon

They just separate the two expression f x and return x in do notation. In fact these all are equivalent in your case: iofunc_ s f = Command s (\x -> do f x ; return x) iofunc_ s f = Command s (\x -> do {f x ; return...

Why does JSHint claim I'm missing a semicolon? [closed]

jquery,jshint,semicolon

You have not missed ; but ) at the end of your jquery code. Changing your }; to }); would be a valid here.

Language design: end of statement linebreaks

line-breaks,language-design,semicolon

We had all this before, with assembler, RPG, Cobol, and various other tabular languages where line terminators were significant. Harder to write compilers for. We don't need to go back there. When this was first done back then, everybody realized the need for a statement continuation indicator, so you could...

Read file with separator a space and a semicolon

c++,file,whitespace,fstream,semicolon

You should remove semicolon before converting std::string temp; file >> temp; std::replace( temp.begin(), temp.end(), ';', ' '); *(A + N*c + r) = std::stod( temp ); ...

Program without semicolon compiles fine in C not in C++ why?

c++,c,semicolon

The semicolon is required by both languages. Specifically, C specifies the declaration of one or more structure members as struct-declaration: specifier-qualifier-list struct-declarator-list ; and C++ specifies the declaration of one or more class member variables as member-declaration: attribute-specifier-seq<opt> decl-specifier-seq<opt> member-declarator-list<opt> ; both of which require a semicolon at the end....

illegal start of expression and ';' expected error

java,compiler-errors,semicolon

You have ); in the wrong place. They should appear following the anonymous implementation of Comparator<Point>() : public static void sortByX(List<? extends Point> points) { Collections.sort(points, new Comparator<Point>() //); - remove these { public int compare(Point point1, Point point2) { if (point1.x < point2.x) return -1; if (point1.x > point2.x)...

How to disable WebStorm semicolon check in node.js

node.js,webstorm,ecmascript-6,semicolon

Settings (Preferences on Mac) | Editor | Inspections JavaScript | Code style issues | Unterminated statement -- disable this inspection You can also reach the same inspection by: Placing caret on problematic place in your Editor and bringing Quick Fix menu (Alt + Enter or by clicking on light...

What is a perfomance penalty for single token lookahead?

scala,syntax,go,semicolon

The performance penalty is utterly negligible compared to everything else that the compiler has to do. The Scala-internals mailing list has the following exchange between Haoyi Li and Martin Odersky regarding a parboiled2 parser Haoyi wrote for Scala: Haoyi Li: In terms of perf[ormance], it can parse everything in scala/scala,...

Usage of split with semicolon in Tcl

split,tcl,semicolon

A semicolon is also an optional statement end indicator. Try: puts [split {a;b;c;d} {;}] I'm wondering why it didn't give a syntax error though....

Double semi colon ( ; ; ) allowed in C#.net? [duplicate]

c#,.net,semicolon

Because ; is just an empty statement in other words null statement. It's usually useless but completely valid. This is used in loops where you want to perform something repeatedly but do not want to add a loop body.As shown in the below example: for ( i = 0; i...

Using semicolon separator csv with Powershell

parsing,csv,powershell,semicolon

This may not be a solution to what I expected but it works well, but it is much easier than a solution with parsing Xml. $strPath="C:\Users\user\Desktop\bla\file.csv" $objExcel=New-Object -ComObject Excel.Application $objExcel.Visible=$false $workbook=$objExcel.Workbooks.Open($strPath) $worksheet = $workbook.sheets.item("file") Write-Host $worksheet.Range("K3").Text $objexcel.quit() To work requires Microsoft Excel....

Why is JavaScript designed to automatically insert a semicolon after a return followed by a new line?

javascript,syntax,semicolon

The exact reasons why are probably lost in the mists of time. I'm willing to bet that it happened something like this: At some point, somebody thought it would be a good idea to make semicolons optional at the end of statements. Later on, somebody else noticed an ambiguity in...

vba copy csv file with semicolon delimiters

excel,vba,csv,delimiter,semicolon

I like your way, I'll study it. In the meantime, I found a way to do it! I modified the extension of my *.csv file to *.txt, and slightly changed the code like: Sub Bam() Dim FilesToOpen Dim wkbAll As Workbook Dim wkbTemp As Workbook Dim newSheet As Worksheet FilesToOpen...

Batch File - Insert Line into file

windows,batch-file,cmd,semicolon

By default, the FOR command treats ; as the end-of-line character, so all those lines that start with ; are being ignored. Add eol= to your FOR command, like this: for /f "eol= delims=" %%l in (%inputfile%) do ( ...

python regex how to avoid match multiple semicolon?

regex,logstash,semicolon

Why not just grab anything except the next ; like this (demo) ObSSOCookie=([^;]*) >>> import re >>> data =...

How end of the statement is detected in Go lexer?

syntax,go,lexer,semicolon

You can look in the language specification: The formal grammar uses semicolons ";" as terminators in a number of productions. Go programs may omit most of these semicolons using the following two rules: When the input is broken into tokens, a semicolon is automatically inserted into the token stream at...

Mysql Stored procedure to insert into database table, missing semi colon error

mysql,stored-procedures,semicolon

The problem is within the delimiter. The query breaks on the ';' after your insert query. You can fix this by changing it. like so: DELIMITER $$ drop procedure if exists `Insert_User`$$ create procedure Insert_User(param1 varchar(20),param2 varchar(20)) begin insert into login(username, password) values(param1, param2); end$$ DELIMITER ; ...

Why is MySQL Workbench telling me I need a semicolon

mysql,syntax,semicolon

I think the problem is : you are not using DELIMITER. So just put it this way: DELIMITER // create procedure AddColumnUnlessExists( IN dbName tinytext, IN tableName tinytext, IN fieldName tinytext, IN fieldDef text) begin IF NOT EXISTS ( SELECT * FROM information_schema.COLUMNS WHERE column_name=fieldName and table_name=tableName and table_schema=dbName )...

Disable PHPStorm's built-in inspection of JavaScript semicolons

javascript,phpstorm,semicolon,code-inspection

Whenever you want to adjust or disable an inspection, simply put your cursor on the warning and press Alt + Enter. This will open a popup with some suggestions, containing a menu item for available inspections. In your case, the inspection is called Unterminated statement and can be found under...

Meta refresh tag adds semicolons to URL (;)

php,forms,refresh,meta,semicolon

You should be sanitizing GET variables to protect against XSS (cross site scripting) attacks. If both are integers, you can enforce that. echo '<META HTTP-EQUIV="refresh" Content="0;URL=http://grserviceswap.isys489.com/dev/Abraham/providerViewsAPost.php?SPPostingID=' . intval($PostingID) . '&amp;UserID=' . intval($UserID) . '"/>'; Note I also changed the & to &amp; which is the correct HTML encoding....

jQuery | Unexpected ':' expected ','

jquery,push,semicolon

I've fixed your code: $.each(daysCells,function(k,v) { if($(v).hasClass('schoolDay')) { if(parseInt($(v).closest('td').find('span.day_listing').text(), 10) < 10) // add radix dd.push(createObj($(v).closest('td').find('span.day_listing').text(),'1')); else dd.push(createObj($(v).closest('td').find('span.day_listing').text(), '1')); } else { if(parseInt($(v).closest('td').find('span.day_listing').text(), 10) < 10) // add radix dd.push(createObj('0'+$(v).closest('td').find('span.day_listing').text(),'0')); else...

what is the difference between semicolon and question mark of url

http,url,param,semicolon

The ? delimits the query portion of the URL, whereas the ;, in this case, is consider a parameter of the path itself. Most libraries do not expose this. Ostensibly it is part of routing the request (since the path is part of the overall resource location), vs the query...

Script not working. Lint says Semicolon required

javascript,datediff,semicolon

The semicolon is optional. Ignore that warning, it's not your problem. You have a couple of typos: DolsDay.ToFixed(2) should be DolsDay.toFixed(2). Method names are case-sensitive The next two lines forget the . before ToFixed, and should also use a lowercase t. document.getElementById("DaysRemaining").innerHTML = "Number of <b>days</b> until "+dString+"<b>:</b> "+DateDiff.inDays(d1, d2)+"<br>Dollars...

How to handle semicolons when generating a csv file?

node.js,csv,npm,semicolon

According to CSV specification, you can have delimiters in values, as long as you surround these values with double quotes. From CSV specification: Fields with embedded commas must be delimited with double-quote characters. And: Fields may always be delimited with double quotes. The delimiters will always be discarded. Option to...

Semicolon operator - 'expected ';' after expression' [closed]

c++,handler,operator-keyword,semicolon

you meant p = rhs.p ? rhs.p->clone() : 0; i think which is equal to if(rhs.p) p = rhs.p->clone(); else p = 0; ...

How to split semicolon separated data to columns in hive and also transpose it?

hadoop,hive,transpose,semicolon

select col_1,'Col_2',col_2_al from <table_name> lateral view explode(split(col_2, "\\\;")) col_2_al as col_2_al union all select col_1,'Col_3',col_2_al from <table_name> lateral view explode(split(col_3,"\\\;")) col_3_al as col_2_al ...

Regex. How to get words after semicolon

php,regex,semicolon

You can use this regex: (?:(?<=^)|(?<=; ))\w+ Or this shorter one: (?<=; |^)\w+ RegEx Demo Code: $s = 'Walter Shelter, Mary; Johnson Smith, Robert; Dickinson Queen Patty'; preg_match_all('/(?<=; |^)\w+/', $s, $m); print_r($m); Output: Array ( [0] => Walter [1] => Johnson [2] => Dickinson ) ...

Misplaced semicolon in for loop

java,for-loop,semicolon

If you place semicolon after a for loop then it is technically correct syntax. Because it is considered as an empty statement - that means nothing to execute. In your case - for(i=0;i<n;i++); An empty statement executed up to n times. Or in other words the for-loop simply runs n...

Why do some programming languages allow semicolons to be automatically included? [closed]

javascript,c++,semicolon

Regarding JavaScript, Douglas Crockford explains the origins of the idea in this video. (It's a great talk and it's really worth your time to watch it if you intend to continue pursuing JavaScript.) This is a direct quote from the talk: Semicolon insertion was something intended to make the C...