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| apply: (Prototype.Browser.IE ? function(o, a) { | |
| a = a || []; | |
| switch (a.length) { | |
| case 0: return this.call( o);// \ "FUUU...!" | |
| case 1: return this.call( o,a[0]);// \ _ | |
| case 2: return this.call( o,a[0],a[1]);// \ \o | |
| case 3: return this.call( o,a[0],a[1],a[2]);// /\_ | |
| case 4: return this.call( o,a[0],a[1],a[2],a[3]);// \ /\ | |
| case 5: return this.call( o,a[0],a[1],a[2],a[3],a[4]);// > / | |
| case 6: return this.call( o,a[0],a[1],a[2],a[3],a[4],a[5]);// > | |
| case 7: return this.call(o,a[0],a[1],a[2],a[3],a[4],a[5],a[6]);// \ | |
| } | |
| return this._apply(o, a); | |
| } : Function.prototype.apply), |
Smth like:
var args = [].slice.call(arguments);
args.unshift(o);
this.call.apply(this, args); // efff ya
Author
apply() method didn't exist pre IE5.5 I believe. wrote that code circa 2006-2007.
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As I recall this was the solution to a weird error we encountered with cross-window js invocation in ie7.