Set javascript property using string selector

Question

I want to set object properties using a string selector. I have a string model.name and I have a object to store the values in. Instead of storing the value in object[model.name] I want to store it in object[model][name].

How can that be accomblished with javascript/jQuery or a javascript/jQuery plugin?

Why downvote? Ok, is a simple question. But anyone here was a noob in the past. Or not? — Marcelo De Zen
– Marcelo De Zen, Commented Jul 11, 2012 at 15:33
I tried the most of the common ways of setting data, that i know from php, i usually don't work with javascript, i normally work with back-end programming creating ORM systems... — Bo Thomsen
– Bo Thomsen, Commented Jul 11, 2012 at 15:49

Marcelo De Zen · Accepted Answer · 2012-07-11 15:31:31Z

3

function setObjectPathValue(source, path, value) {
    var parts = path.split('.'), len = parts.length, target = source;

    for (var i = 0, part; i < len - 1; i++) {
        part = parts[i];
        target = target[part] == undefined ? (target[part] = {}) : target[part];
    }
    target[parts[len - 1]] = value;
    return target;
}

var obj = {};
setObjectPathValue(obj, "level1.level2.level3.name", "test");
alert(obj.level1.level2.level3.name);

answered Jul 11, 2012 at 15:31

Marcelo De Zen

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