var something = { wtf: null, omg: null }; My JavaScript knowledge is still horribly patchy since I last programmed with it, but I think I've relearned most of it now. Except for this. I don't recall ever seeing this before. What is it? And where can I learn more about it? ...
So if i am setting up a yahoo pipes badge on my site, yahoo gives me this code <script src="http://pipes.yahoo.com/js/listbadge.js">{"pipe_id":"USER_ID","_btype":"list"}</script> Notice its passing an object literal to the remote script. i would like to do something similar with my own scripts, how do you interact with that...
ok, people here is my amazing antigravity library. I'm trying to define it as an object literal, which, uh, i read all the cool kids are doing in order to to encapsulate their libraries. Basic tests indicate it's working properly, but I cannot seem to see document.body from inside my object. what should happen is when I click on the p...
How can I loop through all members in a JavaScript object including values that are objects. For example, how could I loop through this (accessing the "your_name" and "your_message" for each)? var validation_messages = { "key_1": { "your_name": "jimmy", "your_msg": "hello world" }, "key_2": { "your_name": "bi...
Hi, the other day I read this article by Alan Storm called "Using jQuery and the Object Literal Singleton/Module Pattern". Now I'm wondering if any of you are writing jQuery code using the object literal notation a lot? I'd be happy to check some code examples and/or get advise on when it actually makes sense to use this notation. Tha...
Here is my object literal: var obj = {key1: value1, key2: value2}; How can I add {key3: value3} to the object? ...
Is there any way to determine in Javascript if an object was created using object-literal notation or using a constructor method? It seems to me that you just access it's parent object, but if the object you are passing in doesn't have a reference to it's parent, I don't think you can tell this, can you? ...
Hi, I need to create an array of object literals like this: var myColumnDefs = [ {key:"label", sortable:true, resizeable:true}, {key:"notes", sortable:true,resizeable:true},...... In a loop like this: for ( var i=0 ; i < oFullResponse.results.length; i++) { console.log(oFullResponse.results[i].label); } The value of '...
Found this at MDC but how if I'd wanted to add a private variable to the var dataset = { tables:{ customers:{ cols:[ /*here*/ ], rows:[ /*here*/ ] }, orders:{ cols:[ /*here*/ ], rows:[ /*here*/ ] } }, relations:{ 0:{ parent:'c...
STORE = { item : function() { } }; STORE.item.prototype.add = function() { alert('test 123'); }; STORE.item.add(); Been trying to figure out what's wrong with this quite a while. Why doesn't this work? However, it works when I use the follow: STORE.item.prototype.add(); ...
I've read that rather than simply writing a bunch of functions, I should use object literal. Can someone explain what the advantages of object literal are with examples, because I don't understand thus far. Thanks ...
i.e. is it possible to do this: var fruit = "banana"; var x = { "app" + "le" : 5, // "apple" : 5 function(){return "orange"} : 8, // "orange" : 8 "" + fruit : 3 // "banana" : 3 }; ...
The code below is used to note some methods to run in particular circumstances so they can be called using a simpler syntax. var callbacks = {alter: SPZ.sequenceEditor.saveAndLoadPuzzle, copy: SPZ.sequenceEditor.saveAsCopyAndLoadPuzzle, justSave:SPZ.sequenceEditor.saveAndLoadPuzzle}; But the code keeps retu...
Is it possible to creat an object literal on the fly? Like this: var arr = [ 'one', 'two', 'three' ]; var literal = {}; for(var i=0;i<arr.length;i++) { // some literal push method here! /* literal = { one : "", two : "", three : "" } */ } Thus I want the result to be like this: literal =...
I see this all the time: object literals declared such that some keys are surrounded with quotes and others are not. An example from jQuery 1.4.2: jQuery.props = { "for": "htmlFor", "class": "className", readonly: "readOnly", maxlength: "maxLength", cellspacing: "cellSpacing", rowspan: "rowSpan", colspan: "co...
I'm not sure how best to describe this problem... In short, I want to use object literal to allow me to pass a random amount of variables in any order to a function. Whilst this is not big deal in theory, in my code, this object literal is passed to a second function call on_change. on_change works comparing an element inner HTML to a s...
Please refer to the code below, when I "comment in" either of the commented out lines, it causes the error (in IE) of "':' expected". So then is my conclusion correct, that this inability to provide a reference to an object value, as an object key in a string literal; is this strictly an interpreter/parsing issue? Is this a candidate f...
I have the following (simplified) object literal. The icons method uses closure to hide the icons variable, which I'd like to have as an associative array for later lookups. var MapListings = { icons: function () { var allIcons = [] ; return { add: function (iconType, iconImage) { var ico...
JavaScript has object literals, e.g. var p = { name: "John Smith", age: 23 } and .NET has anonymous types, e.g. var p = new { Name = "John Smith", Age = 23}; // C# Something similar can be emulated in Python by (ab)using named arguments: class literal(object): def __init__(self, **kwargs): for (k,v) in kwargs.iter...
In Scala I could define an abstract class and implement it with an object: abstrac class Base { def doSomething(x: Int): Int } object MySingletonAndLiteralObject extends Base { override def doSomething(x: Int) = x*x } My concrete example in Python: class Book(Resource): path = "/book/{id}" def get(request): ...