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javascript Programming Glossary: returnHow do JavaScript closures work? http://stackoverflow.com/questions/111102/how-do-javascript-closures-work from foo . That is a closure. A function doesn't have to return in order to be called a closure. Simply accessing variables.. lexical scope creates a closure . function foo x var tmp 3 return function y alert x y tmp var bar foo 2 bar is now a closure... to create more than one closure function either by returning a list of them or by setting them to global variables. All..
Access / process (nested) objects, arrays or JSON http://stackoverflow.com/questions/11922383/access-process-nested-objects-arrays-or-json of a binary tree function getLeaf node if node.leftChild return getLeaf node.leftChild recursive call else if node.rightChild.. node.leftChild recursive call else if node.rightChild return getLeaf node.rightChild recursive call else node must be a leaf.. recursive call else node must be a leaf node return node var first_leaf getLeaf root DEMO A more generic way to..
event.preventDefault() vs. return false http://stackoverflow.com/questions/1357118/event-preventdefault-vs-return-false vs. return false When I want to prevent other event handlers from executing.. function e custom handling here e.preventDefault # 2 return false 'a' .click function custom handling here return false.. # 2 return false 'a' .click function custom handling here return false Is there any significant difference between those two..
Does it matter which equals operator (== vs ===) I use in JavaScript comparisons? http://stackoverflow.com/questions/359494/does-it-matter-which-equals-operator-vs-i-use-in-javascript-comparisons to go through some horrific JavaScript at work and it's returning a huge number of suggestions to replace two equals signs.. so if two values are not the same type will simply return false . It's this case where will be faster and may return a.. return false . It's this case where will be faster and may return a different result than . In all other cases performance will..
Validate email address in JavaScript? http://stackoverflow.com/questions/46155/validate-email-address-in-javascript 9 1 3 . 0 9 1 3 . 0 9 1 3 . 0 9 1 3 a zA Z 0 9 . a zA Z 2 return re.test email But keep in mind that one should not rely only..
http://stackoverflow.com/questions/500431/javascript-variable-scope Five this.a 5 Advanced closure var six function var foo 6 return function javascript closure means I have access to foo in here..
Javascript closure inside loops - simple practical example http://stackoverflow.com/questions/750486/javascript-closure-inside-loops-simple-practical-example outside of the function var funcs function createfunc i return function console.log My value i for var i 0 i 3 i funcs i createfunc..
How can I get query string values in JavaScript? http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript new RegExp name ^ # results regex.exec location.search return results null decodeURIComponent results 1 .replace g share..
AngularJS - Processing $http response in service http://stackoverflow.com/questions/12505760/angularjs-processing-http-response-in-service up by the then in the controller. return response.data Return the promise to the controller return promise return myService.. up by the then in the controller. return response.data Return the promise to the controller return promise return myService..
Javascript code to parse CSV data [closed] http://stackoverflow.com/questions/1293147/javascript-code-to-parse-csv-data array. arrData arrData.length 1 .push strMatchedValue Return the parsed data. return arrData script share improve this answer..
Why RegExp with global flag in Javascript give wrong results? http://stackoverflow.com/questions/1520800/why-regexp-with-global-flag-in-javascript-give-wrong-results This is the same value as 15.10.2.1's NCapturingParens. Return a new array with the following properties The index property..
Sound effects in JavaScript / HTML5 http://stackoverflow.com/questions/1933969/sound-effects-in-javascript-html5 Snd name function var clone new Constructor clone.play Return the cloned element so the caller can interrupt the sound effect..
Get Cursor Position within a Text Input field http://stackoverflow.com/questions/2897155/get-cursor-position-within-a-text-input-field based but there is no problem to integrate it to jquery Returns the caret cursor position of the specified text field. Return.. the caret cursor position of the specified text field. Return value range is 0 oField.value.length. function doGetCaretPosition.. oField.selectionStart '0' iCaretPos oField.selectionStart Return results return iCaretPos From http flightschool.acylt.com devnotes..
What does ':' (colon) do in JavaScript? http://stackoverflow.com/questions/418799/what-does-colon-do-in-javascript being used a lot. What is this used for in JavaScript Return an array of filtered elements r and the modified expression..
jQuery: Return data after ajax call success [duplicate] http://stackoverflow.com/questions/5316697/jquery-return-data-after-ajax-call-success Return data after ajax call success duplicate This question already..
Return value from function with an Ajax call [duplicate] http://stackoverflow.com/questions/562412/return-value-from-function-with-an-ajax-call value from function with an Ajax call duplicate This question..
How to get selected(user-highlighted) text in contenteditable element and replace it? http://stackoverflow.com/questions/6251937/how-to-get-selecteduser-highlighted-text-in-contenteditable-element-and-replac
Can you explain why ++[[]][+[]]+[+[]] = “10”? http://stackoverflow.com/questions/7202157/can-you-explain-why-10 Let expr be the result of evaluating UnaryExpression. Return ToNumber GetValue expr . ToNumber says Object Apply the following.. Let primValue be ToPrimitive input argument hint String . Return ToString primValue . ToPrimitive says Object Return a default.. . Return ToString primValue . ToPrimitive says Object Return a default value for the Object. The default value of an object..
Comparing two arrays in Javascript http://stackoverflow.com/questions/7837456/comparing-two-arrays-in-javascript seem to work. var a1 1 2 3 var a2 1 2 3 console.log a1 a2 Returns false console.log JSON.encode a1 JSON.encode a2 Returns true.. a2 Returns false console.log JSON.encode a1 JSON.encode a2 Returns true JSON encoding each array does but is there a faster or.. JavaScript Reference Global_Objects Object hasOwnProperty Return false if the return value is different if this.hasOwnProperty..
How can I parse a CSV string with Javascript? http://stackoverflow.com/questions/8493195/how-can-i-parse-a-csv-string-with-javascript which follows. JavaScript function to parse CSV string Return array of string values or NULL if CSV string not well formed... s var re_value s s ' ^' S s ^' ' ^ S s ^ ^ ' s s ^ ' s s g Return NULL if input string is not well formed CSV string. if re_valid.test.. m2.replace g ' ' else if m3 undefined a.push m3 return '' Return empty string. Handle special case of empty last value. if s..
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