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The JavaScript arguments object…and beyond

Spare a thought for JavaScript’s arguments object. It wants so desperately to be an array. It walks like an array, quacks like an array but flies like a turkey. During the early years of the language Brendan Eich came close to rewriting arguments as an array until ECMA came along and clipped its wings forever. In spite of all this (or maybe because of it) we love the arguments object. In this arti

ajara1618 2011/01/19

JavaScript

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Exploring JavaScript for-in loops

The for-in loop is the only cross-browser technique for iterating the properties of generic objects. There’s a bunch of literature about the dangers of using for-in to iterate arrays and when to apply the hasOwnProperty filter, but beyond that, documentation of this ubiquitous construct is surprisingly patchy. This article attempts to fill some gaps, I hope its useful. The Basics The ES 5 specific

ajara1618 2011/01/04

JavaScript

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Namespacing in JavaScript

Global variables should be reserved for objects that have system-wide relevance and they should be named to avoid ambiguity and minimize the risk of naming collisions. In practice this means you should avoid creating global objects unless they are absolutely necessary. But, hey, you already knew all that….. So what do you do about it? Conventional wisdom tells us that the best global abatement str