Hey all,
How do I transfer properties, for example pushing to an array my
receiverClass, while it is augmented by a 'givingClass' under Addy Osmani's
augmentation
approach
<http://addyosmani.com/resources/essentialjsdesignpatterns/book/#mixinpatternjavascript>
?
I seem only able to effect the transfer of prototype functions, but can't
monkey around with other property members or set properties on the
receivingClass :(
// Extend an existing object with a method from another
function augment( receivingClass, givingClass ) {
// only provide certain methods
if ( arguments[2] ) {
for ( var i = 2, len = arguments.length; i < len; i++ ) {
receivingClass.prototype[arguments[i]] =
givingClass.prototype[arguments[i]];
}
}
// provide all methods
else {
for ( var methodName in givingClass.prototype ) {
// check to make sure the receiving class doesn't
// have a method of the same name as the one currently
// being processed
if ( !Object.hasOwnProperty.call(receivingClass.prototype,
methodName) ) {
receivingClass.prototype[methodName] =
givingClass.prototype[methodName];
}
// Alternatively (check prototype chain as well):
// if ( !receivingClass.prototype[methodName] ) {
// receivingClass.prototype[methodName] =
givingClass.prototype[methodName];
// }
}
}
}
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