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javascript Programming Glossary: expensiveWhy was the arguments.callee.caller property deprecated in JavaScript? http://stackoverflow.com/questions/103598/why-was-the-arguments-callee-caller-property-deprecated-in-javascript it's more performant accessing the arguments object is expensive Whoops just realised that in addition to everything else the..
What is the cost of '$(this)'? http://stackoverflow.com/questions/10433014/what-is-the-cost-of-this tag info this warning appears The jQuery function is expensive. Calling it repeatedly is extremely inefficient. Well... that.. than id jQuery traverse the DOM to find a match with it's expensive find function else if context context.jquery return context.. return context rootjQuery .find selector So yes it's expensive but that is only true for selectors If we pass a DOMElement..
Detecting when a div's height changes using jQuery http://stackoverflow.com/questions/172821/detecting-when-a-divs-height-changes-using-jquery checking whether the dimensions have changed is less expensive and so you might consider combining the two. Or if you are directly..
How do you determine equality for two JavaScript objects? http://stackoverflow.com/questions/201183/how-do-you-determine-equality-for-two-javascript-objects function if c undefined c a b imagine is really expensive return c In this above case c is not really important to determine..
Populating child dropdownlists in JSP/Servlet http://stackoverflow.com/questions/2263996/populating-child-dropdownlists-in-jsp-servlet is however that this may become unnecessarily lengthy and expensive when you have a lot of items. Imagine that you have 3 steps..
http://stackoverflow.com/questions/231478/ajax-subdomains-and-ssl covers them both naturally the wildcard cert will be more expensive . If you have an HTTPS page that requests items from other domains..
Most efficient method of detecting/monitoring DOM changes? http://stackoverflow.com/questions/2457043/most-efficient-method-of-detecting-monitoring-dom-changes data. The problem with body.innerHTML.length is that it's expensive. It can take between 1 and 5 milliseconds on a fast browser.. number of iframes and it all adds up. I'm pretty sure the expensiveness of doing this is because the innerHTML text is not stored..
http://stackoverflow.com/questions/2954932/difference-between-jquery-click-bind-live-delegate-trigger-and-on attaching a click handler directly to each element is expensive and time consuming. In these cases it's more economical to setup..
Legitimate uses of the Function constructor http://stackoverflow.com/questions/3026089/legitimate-uses-of-the-function-constructor the source code to executable code. This is usually expensive for performance easily a hundred times more expensive than a.. expensive for performance easily a hundred times more expensive than a simple function call for example. Mark ˜Tarquin Wilton..
http://stackoverflow.com/questions/3146798/why-do-people-put-code-like-throw-1-dont-be-evil-and-for-in-front-of to eval it Do they just remove it from the string seems expensive Are there any security advantages to this In response to it..
Password encryption at client side [duplicate] http://stackoverflow.com/questions/4121629/password-encryption-at-client-side can log into your website In any case SSL is neither an expensive or especially difficult to set up solution any more share improve..
http://stackoverflow.com/questions/4204316/jquery-live-vs-delegate #myTable to get the element to attach to admittedly more expensive than document but we're using the result. Then we attach an..
Is reading the `length` property of an array really that expensive an operation in JavaScript? http://stackoverflow.com/questions/5752906/is-reading-the-length-property-of-an-array-really-that-expensive-an-operation reading the `length` property of an array really that expensive an operation in JavaScript I always assumed caching the length.. especially in the condition of a for loop because of the expensiveness of calculating the length of an array. Example for var i.. of the array. Therefore reading it shouldn't be too expensive an operation as opposed to reading it stored in a variable as..
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 element and drawing everything over again but that is an expensive operation for your browser to process. Reuse as many pixels..
Highlight selected node, its links, and its children in a d3.js force directed graph http://stackoverflow.com/questions/8739072/highlight-selected-node-its-links-and-its-children-in-a-d3-js-force-directed-g nodes a and b are neighbors function neighboring a b An expensive way to do that is to iterate over all of the links and see if..
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