javascript push multidimensional array

Question

I've got something like that:

    var valueToPush = new Array();     valueToPush["productID"] = productID;     valueToPush["itemColorTitle"] = itemColorTitle;     valueToPush["itemColorPath"] = itemColorPath;      cookie_value_add.push(valueToPush); 

the result is [];

what am i do wrong?

Answer 1

Arrays must have zero based integer indexes in JavaScript. So:

var valueToPush = new Array(); valueToPush[0] = productID; valueToPush[1] = itemColorTitle; valueToPush[2] = itemColorPath; cookie_value_add.push(valueToPush); 

Or maybe you want to use objects (which are associative arrays):

var valueToPush = { }; // or "var valueToPush = new Object();" which is the same valueToPush["productID"] = productID; valueToPush["itemColorTitle"] = itemColorTitle; valueToPush["itemColorPath"] = itemColorPath; cookie_value_add.push(valueToPush); 

which is equivalent to:

var valueToPush = { }; valueToPush.productID = productID; valueToPush.itemColorTitle = itemColorTitle; valueToPush.itemColorPath = itemColorPath; cookie_value_add.push(valueToPush); 

It's a really fundamental and crucial difference between JavaScript arrays and JavaScript objects (which are associative arrays) that every JavaScript developer must understand.

Answer 2

Use []:

cookie_value_add.push([productID,itemColorTitle, itemColorPath]); 

or

arrayToPush.push([value1, value2, ..., valueN]);