[Webkit-unassigned] [Bug 17146] global variable declarations should shadow window properties from named elements

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sat Feb 2 13:37:39 PST 2008


------- Comment #4 from dhtmlkitchen at gmail.com  2008-02-02 13:37 PDT -------
Created an attachment (id=18874)
 --> (http://bugs.webkit.org/attachment.cgi?id=18874&action=view)
ID (not NAME) creates discrepent behavior with variable binding

The first half of my last comment was inaccurate. Please disregard (I can't
edit that)


Binding Variables to Global Object props:
This means that in global scope/context  |this| is the global object. Variables
of the global object become properties:
 var x = 1;
   equivalent to:
 this.x = 1;

magic-prop: a property that was created automagically by the browser from an
element's ID.

Binding Variables of same-named magic-props to Global Object as Properties (use
 IE: replace the default attributes that the variable was given. It's not
readonly after binding. 
 Webkit: Do not bind.

Assigning to window auto-properties (no var)
 IE: When assigning to a of window auto-prop, fail silently, as if it were
 Webkit: allow assignment.

That is why usevar is available in Webkit. Webkit doesn't bind it as a

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