underscorejs/lodash mixin that will return the numeric values (stored as strings) in an property, object, array or combination as well as strip slashes

formatData.js

function formatData(thing) {
    function sanitizeString(str) {
        //      discuss at: http://phpjs.org/functions/stripslashes/
        //      original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
        //      improved by: Ates Goral (http://magnetiq.com)
        //      improved by: marrtins
        //      improved by: rezna
        //      fixed by: Mick@el
        //      bugfixed by: Onno Marsman
        //      bugfixed by: Brett Zamir (http://brett-zamir.me)
        //      input by: Rick Waldron
        //      input by: Brant Messenger (http://www.brantmessenger.com/)
        //      reimplemented by: Brett Zamir (http://brett-zamir.me)
        //      example 1: stripslashes('Kevin\'s code');
        //      returns 1: "Kevin's code"
        //      example 2: stripslashes('Kevin\\\'s code');
        //      returns 2: "Kevin\'s code"
        return (str + '')
            .replace(/\\(.?)/g, function (s, n1) {
                switch (n1) {
                case '\\':
                    return '\\';
                case '0':
                    return '\u0000';
                case '':
                    return '';
                default:
                    return n1;
                }
            });
    }

    if (_.isUndefined(thing) || _.isNull(thing)) {
        return;
    }
    if (_.isNumber(thing)) {
        return +thing;
    }
    if (_.isString(thing)) {
        if (!isNaN(parseFloat(thing)) && isFinite(thing)) {
            return +thing;
        }
        return sanitizeString(thing);
    }
    _.each(thing, function (v, k) {
        thing[k] = formatData(v);
    });
    return thing;
}
_.mixin({
    'formatData': formatData
});
/*
Example use:
var x = {
    name: 'Matt',
    age: "55",
    arr: ["12", "Baseball\'s"]
},
y = ['14','Ralph'],
z = "122",
a = {
  num1:"12121",
  data: ["Steve\'s","30"]
},
b = [];
b.push(x,y,z,a);
console.log(_.formatData(b));

Will produce:
[
    {
        age: 55,
        arr: [12, "Baseball's]
        name: "Matt"
    },
    [14, "Ralph"], 122, {
        data: ["Steve's",30],
        num1: 12121
    }
]
*/