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javascript Programming Glossary: nullWhy does jQuery or a DOM method such as `getElementById` not find the element? http://stackoverflow.com/questions/14028959/why-does-jquery-or-a-dom-method-such-as-getelementbyid-not-find-the-element element does not exist yet and getElementById will return null . jQuery The same applies to all selectors with jQuery. jQuery..
http://stackoverflow.com/questions/1403888/get-escaped-url-parameter
http://stackoverflow.com/questions/191881/serializing-to-json-in-jquery JSON.stringify var json_text JSON.stringify your_object null 2 To convert a string to JSON object use JSON.parse var your_object..
How to get caret position in textarea? http://stackoverflow.com/questions/263743/how-to-get-caret-position-in-textarea el.focus var r document.selection.createRange if r null return 0 var re el.createTextRange rc re.duplicate re.moveToBookmark..
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 'false' false false '0' true false undefined false false null false null undefined true ' t r n ' 0 true The lack of transitivity.. false '0' true false undefined false false null false null undefined true ' t r n ' 0 true The lack of transitivity is..
XmlHttpRequest error: Origin null is not allowed by Access-Control-Allow-Origin http://stackoverflow.com/questions/3595515/xmlhttprequest-error-origin-null-is-not-allowed-by-access-control-allow-origin error Origin null is not allowed by Access Control Allow Origin I'm developing.. processImages minx 30 miny 0 maxx 0 maxy 150 . Origin null is not allowed by Access Control Allow Origin. If I query that.. contents of the Origin header. However file URLs produce a null Origin which can't be authorized via echo back. The first was..
Most elegant way to clone a JavaScript object http://stackoverflow.com/questions/728360/most-elegant-way-to-clone-a-javascript-object stores its data as a hidden member function clone obj if null obj object typeof obj return obj var copy obj.constructor for.. following function clone obj Handle the 3 simple types and null or undefined if null obj object typeof obj return obj Handle.. obj Handle the 3 simple types and null or undefined if null obj object typeof obj return obj Handle Date if obj instanceof..
How can I get query string values in JavaScript? http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript name ^ # results regex.exec location.search return results null decodeURIComponent results 1 .replace g share improve this..
Starting phantomjs server from php and waiting for it's response http://stackoverflow.com/questions/10651320/starting-phantomjs-server-from-php-and-waiting-for-its-response success data '. data.' ' function curl_post url array post NULL array options array defaults array CURLOPT_POST 1 CURLOPT_HEADER..
Is localStorage.getItem('item') better than localStorage.item or localStorage['item']? http://stackoverflow.com/questions/12632463/is-localstorage-getitemitem-better-than-localstorage-item-or-localstoragei JSON.parse localStorage 'item' weren't working to return NULL when the item hadn't been set yet. However JSON.parse localStorage.getItem..
http://stackoverflow.com/questions/14136349/how-does-similar-text-work strings PHP_FUNCTION similar_text char t1 t2 zval percent NULL int ac ZEND_NUM_ARGS int sim int t1_len t2_len if zend_parse_parameters..
Instantiating a JavaScript object by calling prototype.constructor.apply http://stackoverflow.com/questions/181348/instantiating-a-javascript-object-by-calling-prototype-constructor-apply proto_date date_constructor cx proto if proto_date return NULL proto_date cx runtime jsNaN Date.prototype is a Date instance..
Calling C++ function from JavaScript script running in a web browser control http://stackoverflow.com/questions/3747414/calling-c-function-from-javascript-script-running-in-a-web-browser-control std string name IHTMLDocument2 doc GetDoc IHTMLWindow2 win NULL doc get_parentWindow win if win NULL return IDispatchEx winEx.. IHTMLWindow2 win NULL doc get_parentWindow win if win NULL return IDispatchEx winEx win QueryInterface winEx if winEx NULL.. return IDispatchEx winEx win QueryInterface winEx if winEx NULL return int lenW MultiByteToWideChar CP_ACP MB_PRECOMPOSED name.c_str..
http://stackoverflow.com/questions/3827466/detect-iphone-browser D In PHP you can write php function isIphone user_agent NULL if isset user_agent user_agent isset _SERVER 'HTTP_USER_AGENT'..
XmlHttpRequest.responseText while loading (readyState==3) in Chrome http://stackoverflow.com/questions/3880381/xmlhttprequest-responsetext-while-loading-readystate-3-in-chrome problem in Chrome w3c says that responseText can't be NULL in readyState 3 Chrome implemented this rule but gives only..
How can I parse a CSV string with Javascript? http://stackoverflow.com/questions/8493195/how-can-i-parse-a-csv-string-with-javascript to parse CSV string Return array of string values or NULL if CSV string not well formed. function CSVtoArray text var.. 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..
Calling Javascript using UIWebView http://stackoverflow.com/questions/8886443/calling-javascript-using-uiwebview copyItemAtPath myPathInfo toPath writablePath error NULL graphView loadRequest NSURLRequest requestWithURL urlStr void..
Javascript window.open is blocked by IE popup blocker http://stackoverflow.com/questions/888964/javascript-window-open-is-blocked-by-ie-popup-blocker Can anyone help The child1 variable is always returned as NULL if popup blocker enabled... Maybe the problem is that the onclick..
Load .txt file using JQuery or Ajax http://stackoverflow.com/questions/11589387/load-txt-file-using-jquery-or-ajax for you help. JS plantSeed.js var pageExecute fileContents Null pagePrefix Null slides Null init function .ajax url . seeds.. plantSeed.js var pageExecute fileContents Null pagePrefix Null slides Null init function .ajax url . seeds Ag.txt success function.. var pageExecute fileContents Null pagePrefix Null slides Null init function .ajax url . seeds Ag.txt success function data..
http://stackoverflow.com/questions/12973706/javascript-collection types. Object Array Number Boolean Date RegEx and Error Null is not a type typeof null is object. What's the catch There..
Primitive value vs Reference value http://stackoverflow.com/questions/13266616/primitive-value-vs-reference-value the object is stored. Primitive types inlcude Undefined Null Boolean Number or String . The basics Objects are aggregations..
Why don't number literals have access to Number methods? http://stackoverflow.com/questions/4046342/why-dont-number-literals-have-access-to-number-methods 3 specification you will see that primitive value types Null and Undefined don't have accompanying Null and Undefined Objects... value types Null and Undefined don't have accompanying Null and Undefined Objects. Null ReferenceError Null is not defined.. don't have accompanying Null and Undefined Objects. Null ReferenceError Null is not defined The other primitive value..
Why is 4 not an instance of Number? http://stackoverflow.com/questions/472418/why-is-4-not-an-instance-of-number ECMA 262 defines the following primitive types Undefined Null Boolean Number and String . Additionally there is the type Object.. property called Call and null is a primitive value of type Null . This means that the result of the typeof operator doesn't..
Why can't I add properties to a string object in javascript? http://stackoverflow.com/questions/5201138/why-cant-i-add-properties-to-a-string-object-in-javascript in JavaScript 5 primitive types String Number Boolean Null Undefined 1 non primitive type Object Values of the primitive.. of foo a if the value of foo is of the type Undefined or Null then an error will be thrown b if the value of foo is of the..
Difference between == and === in JavaScript [duplicate] http://stackoverflow.com/questions/523643/difference-between-and-in-javascript are strictly equal if they refer to the same Object. Null and Undefined types are but not . I.e. Null Undefined but not.. same Object. Null and Undefined types are but not . I.e. Null Undefined but not Null Undefined Comparison Operators MDC share.. Undefined types are but not . I.e. Null Undefined but not Null Undefined Comparison Operators MDC share improve this answer..
Changing CSS Values with Javascript http://stackoverflow.com/questions/566203/changing-css-values-with-javascript I set it when I have div id tId div The value returned is Null so if I have Javascript that needs to know the width of something.. the width by 1 not to a specific value getting back Null when I expect the string 50 doesn't really work. So my question..
JavaScript: How does 'new' work internally http://stackoverflow.com/questions/6750880/javascript-how-does-new-work-internally values such as a Number String Boolean Undefined or Null Object.prototype is used instead. After creating the object..
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