October 1998
Intermediate to advanced
95 pages
4h 36m
English
Content preview from JavaScript Pocket Reference
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Global
JavaScript Pocket Reference
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87
Global
global properties and functions
Core JavaScript 1.0; JScript 1.0; ECMA v1
Synopsis
this
Description
The Global object holds the global properties and methods listed.
These properties and methods do not need to be referenced or
invoked through any other object. Any variables and functions
you define in your own top-level code become properties of the
Global object. The Global object has no name, but you can refer
to it in top-level code (i.e. outside of methods) with the
this
keyword. In client-side JavaScript, the Window object serves as
the Global object. It has quite a few additional properties and
methods, and can be referred to as
window.
Global Properties
Infinity
A numeric value that represents positive infinity. JS 1.3;
JScript 3.0; ECMA v1.
NaN
The not-a-number value. JS 1.3; JScript 3.0; ECMA v1.
undefined
The undefined value. JS 1.5; JScript 5.5; ECMA v3.
Global Functions
decodeURI(uri)
Returns a decoded copy of uri, with any hexadecimal escape
sequences replaced with the characters they represent. JS 1.5;
JScript 5.5; ECMA v3.
decodeURIComponent(s)
Returns a decoded copy of s, with any hexadecimal escape
sequences replaced with the characters they represent. JS 1.5;
JScript 5.5; ECMA v3.
Global
88
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JavaScript Pocket Reference
encodeURI(uri)
Returns an encoded
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.