In my previous article I showed the differences between scope and context, basic problems that arise and how to fix them. If you are just using some JavaScript and maybe jQuery, an understanding of scope is all that is needed to get you by. Once you start using objects or namespaces however, you’ll start to run into issues with context and will need to use the keyword this. But when you get into object oriented JavaScript, you’ll need an advanced understanding of context and how to make it work for you. To do this, we’ll use the call() and apply() methods, and then a backwards compatible version of the new feature Mozilla recently released in JavaScript 1.8.5 called bind().
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Posts Tagged ‘functions’
JavaScript Context, Call and Bind – Ninja Level
Monday, December 5th, 2011JavaScript Scope and Context – Not the Same Thing!
Tuesday, November 29th, 2011In forums and other places I often see people incorrectly use the term scope when they should be using the term context. Scope applies to the variable and functional access of a function, whereas context is the property and method access of a function. Essentially, scope is function-based, and context is object-based.
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