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#837 - modify Util.extend to deal with custom toString property - IE doesn't iterate over toString, this patch fixes this behavior for Util.extend

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@3760 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Tim Schaub
2007-07-16 16:35:02 +00:00
parent b31101d7f7
commit cae56a65f0
2 changed files with 49 additions and 5 deletions
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26
lib/OpenLayers/Util.js
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@@ -36,12 +36,30 @@ if ($ == null) {
}
/**
* Function: extend
* From Prototype.js
* APIFunction: extend
* Copy all properties of a source object to a destination object. Modifies
* the passed in destination object.
*
* Parameters:
* destination - {Object} The object that will be modified
* source - {Object} The object with properties to be set on the destination
*
* Returns:
* {Object} The destination object.
*/
OpenLayers.Util.extend = function(destination, source) {
for (property in source) {
destination[property] = source[property];
if(destination && source) {
for(property in source) {
destination[property] = source[property];
}
/**
* IE doesn't include the toString property when iterating over an object's
* properties with the for(property in object) syntax. Explicitly check if
* the source has its own toString property.
*/
if(source.hasOwnProperty && source.hasOwnProperty('toString')) {
destination.toString = source.toString;
}
}
return destination;
};