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!
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"];
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'].
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