If a DOM Element is removed, are its listeners removed from memory too?...
I want to know the size occupied by a JavaScript object. Take the following function: function Marks(){ this.maxMarks = 100; } function Student(){ this.firstName = "firstName"; this.lastName = "lastName"; this.marks = new...
Is there a way to find out how much memory is being used by a web page, or by my jquery application? Here's my situation: I'm building a data heavy webapp using a jquery frontend and a restful backend that serves data in JSON. The page...
I'm embedding a large array in <script> tags in my HTML, like this (nothing surprising): <script> var largeArray = [/* lots of stuff in here */]; </script> In this particular example, the array has 210,000 elements. Tha...
Is there a tool/plugin/function for Firefox that'll dump out a memory usage of Javascript objects that you create in a page/script? I know about Firebug's profiler but I'd like something more than just times. Something akin to what Your...
Curious about what was the maximum string length I could get in Javascript, I tested it myself, today, on my Firefox 43.0.1, running in Windows 7. I was able to construct a string with length 2^28 - 1, but when I tried to create a string with one mor...
I've been trying to use a canvas to edit video by drawing to a offscreen canvas and then using getImageData to do some work and then putting that onto my onscreen canvas. It works, but even with a small 480x360 video, Chrome memory usage keeps in...
Snippet 1: var a; // undefined variable named 'a' function a(foo) { // a function named 'a' var foo = "Hello World"; console.log(foo); } console.log(a); // output is: [Function: a], but why not undefined? Snippet 2:...
I'm profiling javascript application using Chrome dev tools. I see that the only memory area that grows is System objects total. I wonder how could I understand what causes such behavior as there are no details in the tool showing which system...
A closure: function test() { var count = 0; return function() { count++; }; } As we all know, the count won't release after test() be called, and now if the closure is useless to me, how could I release memory of it?...
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