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javascript Programming Glossary: youHow do JavaScript closures work? http://stackoverflow.com/questions/111102/how-do-javascript-closures-work closures work Like the old Albert Einstein said If you can't explain it to a six year old you really don't understand.. Einstein said If you can't explain it to a six year old you really don't understand it yourself. Well I tried to explain.. it to a six year old you really don't understand it yourself. Well I tried to explain JavaScript closures to a 27 year..
Access / process (nested) objects, arrays or JSON http://stackoverflow.com/questions/11922383/access-process-nested-objects-arrays-or-json . Depending on where the object comes from and what you want to do you might have to test in each iteration whether.. on where the object comes from and what you want to do you might have to test in each iteration whether the property is..
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 and and their evil twins and . The good ones work the way you would expect. If the two operands are of the same type and have.. false c d false e f true e f true The special case is when you compare a literal with an object that evaluates to the same.. false . Which one is correct That really depends on what you're trying to compare. My advice is to bypass the question entirely..
http://stackoverflow.com/questions/5874652/prop-vs-attr his recommendation to prefer attr . Original answer If you've only ever used jQuery and not the DOM directly this could.. what attr used to do. Replacing calls to attr with prop in your code will generally work. Properties are generally simpler.. properties and attributes. This is a good thing. If you're a jQuery developer and are confused by this whole business..
Javascript closure inside loops - simple practical example http://stackoverflow.com/questions/750486/javascript-closure-inside-loops-simple-practical-example Well the problem is that the variable i within each of your anonymous functions is bound to the same variable outside of.. bound to the same variable outside of the function. What you want to do is bind the variable within each function to a separate.. scope by wrapping the function creation in a new function you ensure that the value of i remains as you intended. share improve..
Access / process (nested) objects, arrays or JSON http://stackoverflow.com/questions/11922383/access-process-nested-objects-arrays-or-json a property of the object or it is an inherited property. You can do this with Object#hasOwnProperty MDN . What if the depth..
Reference: Why does the PHP (or other server side) code in my Javascript not work? http://stackoverflow.com/questions/13840429/reference-why-does-the-php-or-other-server-side-code-in-my-javascript-not-wor alerts 42 php javascript share improve this question Your code is split into two entirely separate parts the server side.. like 1. and 2. will but without leaving the current page. You can also use Javascript to make the browser open a new page..
Why 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 with the passed ID really does not exist in the document. You should double check that the ID you pass to getElementById really..
jQuery Mobile: document ready vs page events http://stackoverflow.com/questions/14468659/jquery-mobile-document-ready-vs-page-events http stackoverflow.com a 13932240 1848600 Solution 1 You can pass values with changePage .mobile.changePage 'page2.html'.. '' Example http jsfiddle.net Gajotres 9KKbx Solution 3 You can also access data from the previous page like this '#index'..
How do I “think in AngularJS” if I have a jQuery background? http://stackoverflow.com/questions/14994391/how-do-i-think-in-angularjs-if-i-have-a-jquery-background intent is clear. Remember don't design and then mark up. You must architect and then design. Data binding This is by far.. into this over arching theme keep your concerns separate. Your view acts as the official record of what is supposed to happen.. just ask for an instance of it and it will be granted. You don't have to know about loading order or file locations or..
How can I obfuscate JavaScript? http://stackoverflow.com/questions/194397/how-can-i-obfuscate-javascript tool built enhanced and maintained by the Yahoo UI team. You may also use Google Closure Compiler UglifyJS Private String.. options but also a lot of work which may be unnecessary. You could probably base64 encode some string values and that would..
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 var processImages function data alert 'ok' eval jsonp You can run the example online . EDIT 2 Thanks to Darin for his.. For the record as far as I can tell you had two problems You weren't passing a jsonp type specifier to your .get so it was.. to use JSONP make sure one of the following is the case You're using .get and set dataType to jsonp . You're using .getJSON..
http://stackoverflow.com/questions/5874652/prop-vs-attr of this change though. I'll summarize the main issues You usually want prop rather than attr . In the majority of cases..
Is JavaScript's Floating-Point Math Broken? http://stackoverflow.com/questions/588004/is-javascripts-floating-point-math-broken point representation which is the same as Java's double . You need to never compare with but instead compare the absolute..
Modify the URL without reloading the page http://stackoverflow.com/questions/824349/modify-the-url-without-reloading-the-page html response.html pageTitle response.pageTitle urlPath You can then use window.onpopstate to detect the back forward button..
How can I get query string values in JavaScript? http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript url plugins query string share improve this question You don't need jQuery for that purpose. You can use vanilla JavaScript.. this question You don't need jQuery for that purpose. You can use vanilla JavaScript function getParameterByName name..
How to include a JavaScript file in another JavaScript file? http://stackoverflow.com/questions/950087/how-to-include-a-javascript-file-in-another-javascript-file but there are two main ways to achieve what you want 1 You can load it with an Ajax call and then use eval. This is the.. URL in the HTML. This is definitely the best way to go. You can load the script even from a foreign server and it's clean.. clean as you use the browser parser to evaluate the code. You can put the script tag in the head of the web page or at the..
Uploading Image to Amazon s3 with HTML, javascript & jQuery with Ajax Request (No PHP) http://stackoverflow.com/questions/11240127/uploading-image-to-amazon-s3-with-html-javascript-jquery-with-ajax-request-n 'Content Type' file.type fd.append 'AWSAccessKeyId' 'YOUR ACCESS KEY' fd.append 'policy' 'YOUR POLICY' fd.append 'signature'.. 'AWSAccessKeyId' 'YOUR ACCESS KEY' fd.append 'policy' 'YOUR POLICY' fd.append 'signature' 'YOUR SIGNATURE' fd.append file.. fd.append 'policy' 'YOUR POLICY' fd.append 'signature' 'YOUR SIGNATURE' fd.append file file var xhr getXMLHTTPObject xhr.upload.addEventListener..
preventDefault() on an <a> tag http://stackoverflow.com/questions/265478/preventdefault-on-an-a-tag when a link is clicked ul class product info li a href # YOU CLICK THIS TO SHOW HIDE a div class toggle p CONTENT TO SHOW..
HTML5 Game (Canvas) - UI Techniques? http://stackoverflow.com/questions/4599509/html5-game-canvas-ui-techniques isn't a standard way yet And finally which way would YOU recommend use Many thanks in advance EDIT I've moved this question..
JQuery Mobile Detected if there's internet Connection http://stackoverflow.com/questions/5626832/jquery-mobile-detected-if-theres-internet-connection status maybe_an_exception_object if status 'timeout' alert YOU BROKE IT else alert OH NOES TEH INTARWEBS ARE DOWN 1one share..
Facebook how to check if user has liked page and show content? http://stackoverflow.com/questions/6246449/facebook-how-to-check-if-user-has-liked-page-and-show-content en_US all.js script script FB.init appId 'YOUR APP ID' status true cookie true xfbml true script div id container_notlike.. cookie true xfbml true script div id container_notlike YOU DONT LIKE div div id container_like YOU LIKE div The CSS body.. container_notlike YOU DONT LIKE div div id container_like YOU LIKE div The CSS body width 520px margin 0 padding 0 border..
Why am I seeing a value of “undefined” on screen when I submit form in jQuery Mobile? http://stackoverflow.com/questions/7787461/why-am-i-seeing-a-value-of-undefined-on-screen-when-i-submit-form-in-jquery-mo MESSAGE_BODY mailheader or die Failure html body THANK YOU body html php javascript jquery mobile share improve this..
HTML5 Canvas Performance and Optimization Tips, Tricks and Coding Best Practices http://stackoverflow.com/questions/8205828/html5-canvas-performance-and-optimization-tips-tricks-and-coding-best-practices and Optimization Tips Tricks and Coding Best Practices DO YOU KNOW SOME MORE BEST PRACTICES FOR CANVAS Please add to this..
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