Suppose I have this code:    var myArray = new Object(); myArray["firstname"] = "Bob"; myArray["lastname"] = "Smith"; myArray["age"] = 25;   Now if I wanted to remove "lastname"?....is there some equi...
I recently asked this question, but after some of the responses and some research, i wanted to change what i was actually asking.  i have seen a number of blog posts about sending associative arrays from javascript to C# controller action but i want...
I have object which contains array and I want it contains the associative array so keys are strings. How to do it? This does not work:  {profiles: { easy:["example" : 1],advanced:["example" : 1] }   I wanted to avoid   console.log({pr...
I'd hope to find an example code to do a deep copying of objects in ECMAScript5.  The copying should be able to clone   Nested objects  Nested arrays Nested objects in arrays (clone each array item individually)   Note: jQuery.extend() does not s...
How can I dynamically create keys in javascript associative arrays?   All the documentation I've found so far is to update keys that are already created:   arr['key'] = val;   I have a string like this " name =  oscar "  And I wan...
I'm writing a JavaScript interpreter for extremely resource-constrained embedded devices (http://www.espruino.com), and every time I think I have implemented some bit of JavaScript correctly I realise I am wrong.  My question now is about []. How...
How do you serialise HTML form data to an Associated Array as opposed to the numeric index format produced by $.serializeArray() using jQuery?  The output given by jQuery.serializeArray makes it difficult to directly select values using a numeric in...
In Javascript I have a JSON object from which I want to process just the items:  var json = {     itema: {stuff: 'stuff'},     itemb: {stuff: 'stuff'},     itemc: {stuff: 'stuff'},     itemd: {stuff: 'stuff'} }   In Py...
So I know how to set the key dynamically like this:  var hashObj = {}; hashObj[someValue] = otherValue;   But I haven't seen any answer regarding map():  var list = ['a', 'b', 'c'];  var hashObject = list.map(function(some...

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