Does JQuery support Dictionaries (key, value) collection?

Does JQuery support Dictionaries (key, value) collection ?

I would like to set the following data in a structure

[1, false]
[2, true]
[3, false]

with the ability to add, lookup, delete and update.

Any help!

Solution 1:

No, jQuery doesn't, but Javascript does.

Just use an object:

var dict = {
  "1" : false,
  "2" : true,
  "3" : false
};

// lookup:
var second = dict["2"];
// update:
dict["2"] = false;
// add:
dict["4"] = true;
// delete:
delete dict["2"];

Solution 2:

jQuery, no. But JavaScript does. There are only two structures in JavaScript, arrays and objects.

Objects can be used as dictionary, where the properties are the "keys":

var dict = {
    1: true,
    2: true,
    3: false
};

Properties of objects can be either accessed with dot notation, obj.property (if the property name is a valid identifier, which a digit as used above is not) or with array access notation, obj['property'].

Solution 3:

You don't need separate dictionary classes, since Javascript objects act as dictionaries. See this:

var userObject = {}; // equivalent to new Object()
userObject["lastLoginTime"] = new Date();
alert(userObject["lastLoginTime"]);

Full article here: http://msdn.microsoft.com/en-us/magazine/cc163419.aspx