Dynamic deep setting for a JavaScript object [duplicate]

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a) What’s wrong with a simple a.b[0].c=”After”?

As for the method:

function setToValue(obj, value, path) {
    var i;
    path = path.split('.');
    for (i = 0; i < path.length - 1; i++)
        obj = obj[path[i]];

    obj[path[i]] = value;
}

Here the JSFiddle: http://jsfiddle.net/QycBz/24/

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