Question

suppose I have a function：

    function getLayerInfo(uuid, top, left, index, pindex) {
        this.uuid = uuid;
        this.top = top;
        this.left = left;
        this.index = index;
        this.pindex = pindex;
    }

then I use json menthod in json.js:

    var layer = new getLayerInfo('abc', 123, 456, 4, 5);
    var layerjson = layer.toJSONString();
    console.log(layerjson );

It have show the correct result,

So if I want restore the json to array or something else,or what should I do?
Or what I want is just need the “index” property value?

What should I do?
Thank you

Answer 1

If your using jQuery do this:

var result = $.parseJSON(layerjson);

jQuery is recommended because it will use the best and fastest method to parse the JSON string (First trying to run browser parser and then, if unavailable, javascript/built in parsers)

if not using jQuery just run this (it uses browser parser, but be careful with older browsers, make sure it exists):

var result = JSON.parse(layerjson);