Question

I have this array (I know, technically there is no such thing as a multidimensional array in javascript) or ‘object’. I want to get the value -888 like so:

    var thisPage = 1;

    var pagePos = {
        0: {
            left: '0',
            url: 'home',
        },
        1: {
            left: '-888',
            url: 'what_we_offer',
        },
        2: {
            left: '-1776',
            url: 'clients',
        },
        3: {
            left: '-2664',
            url: 'contact_us',
        }
    };

alert(pagePos[thisPage].left);

It works fine in Firefox, but not IE. Why?

Thanks.

Answer 1

This is because of trailing commas after values of url attributes. You can’t have comma after the last value in JSON. The correct syntax is

var pagePos = {
    0: {
        left: '0',
        url: 'home'
    },
    1: {
        left: '-888',
        url: 'what_we_offer'
    },
    2: {
        left: '-1776',
        url: 'clients'
    },
    3: {
        left: '-2664',
        url: 'contact_us'
    }
};