github-migration/prototype
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Remove sniffing from $A by using in operator when accessing property of a nodelist.

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This commit is contained in:
Juriy Zaytsev 2009-03-19 16:22:37 -04:00
parent 4fefe32876
commit 1a375daea2
2 changed files with 5 additions and 16 deletions
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2
CHANGELOG
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@ -1,3 +1,5 @@
* . Use `in` operator when accessing property of a nodelist to prevent Safari <=2.0.4 from crashing (kangax)
* Add Element#clone as a safe wrapper of native `cloneNode`. (Andrew Dupont, kangax)
* Add tests to ensure IE8 properly assigns a class name in the `Element` constructor. [#529 state:resolved] (Riki Fridrich, Andrew Dupont)

19
src/lang/array.js
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@ -8,27 +8,14 @@
**/
function $A(iterable) {
if (!iterable) return [];
if (iterable.toArray) return iterable.toArray();
// Safari <2.0.4 crashes when accessing property of a node list with property accessor.
// It nevertheless works fine with `in` operator, which is why we use it here
if ('toArray' in iterable) return iterable.toArray();
var length = iterable.length || 0, results = new Array(length);
while (length--) results[length] = iterable[length];
return results;
}
if (Prototype.Browser.WebKit) {
$A = function(iterable) {
if (!iterable) return [];
// In Safari, only use the `toArray` method if it's not a NodeList.
// A NodeList is a function, has an function `item` property, and a numeric
// `length` property. Adapted from Google Doctype.
if (!(typeof iterable === 'function' && typeof iterable.length ===
'number' && typeof iterable.item === 'function') && iterable.toArray)
return iterable.toArray();
var length = iterable.length || 0, results = new Array(length);
while (length--) results[length] = iterable[length];
return results;
};
}
/** section: Language, related to: Array
* $w(string) -> Array
* - string (String): A string with zero or more spaces.