Merging associative arrays javascript?

This is how Prototype does it: Object. Extend = function(destination, source) { for (var property in source) { if (source. HasOwnProperty(property)) { destinationproperty = sourceproperty; } } return destination; } called as, for example: var arr1　= { robert: "bobby", john: "jack" }; var arr2 = { elizabeth: "liz", jennifer: "jen" }; var shortnames = Object.

Extend(arr1,arr2) EDIT : added hasOwnProperty() check as correctly pointed out by bucabay in comments.

This is how Prototype does it: Object. Extend = function(destination, source) { for (var property in source) { if (source. HasOwnProperty(property)) { destinationproperty = sourceproperty; } } return destination; }; called as, for example: var arr1　= { robert: "bobby", john: "jack" }; var arr2 = { elizabeth: "liz", jennifer: "jen" }; var shortnames = Object.

Extend(arr1,arr2); EDIT: added hasOwnProperty() check as correctly pointed out by bucabay in comments.

4 You'll need the test source. HasOwnProperty(property) to make sure you only copy the immediate properties over. As it is, this could will copy all properties including those derived from Object.

Prototype – bucabay Sep 20 '09 at 18:54.

With jquery you can call $. Extend obj1 = {a: 1, b: 2}; obj2 = {a: 4, c: 110}; obj3 = $. Extend(obj1, obj2); obj1 == obj3 == {a: 4, b: 2, c: 110} (assoc.

Arrays are objects in js) look here: api.jquery.com/jQuery.extend.

In dojo, the 2-objects/arrays "merge" would be dojo. Mixin(destination, source) -- you can also mix multiple sources into one destination, etc -- see the mixin function's reference for details.

In Javascript there is no notion of associative array, there are objects The only way to merge two objects is to loop for their properties and copy pointers to their values that are not primitive types and values for primitive types to another instance.

2 Objects in Javascript are implemented as associative arrays, so there certainly is the notion of same – George Jempty May 30 '09 at 14:16.

Function mergedObject(obj1, obj2, force){ for(var p in obj1) thisp= obj1p; for(var p in obj2){ if(obj2. HasOwnProperty(p)){ if(force || thisp=== undefined) thisp= obj2p; else{ n= 2; while(thisp+n! == undefined)++n; thisp+n= obj2p; } } } }.

Yahoo UI (YUI) also has a helper function for this: developer.yahoo.com/yui/examples/yahoo/y... YAHOO. Namespace('example'); YAHOO.example. Set1 = { foo : "foo" }; YAHOO.example.

Set2 = { foo : "BAR", bar : "bar" }; YAHOO.example. Set3 = { foo : "FOO", baz : "BAZ" }; var Ye = YAHOO. Example; var merged = YAHOO.lang.

Merge(Ye. Set1, Ye. Set2, Ye.

Set3).

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.