Question

I have a little problem. i searched but did not get help to solve it. I have an array for example var oldArr=['one','two','3']; and i want to make a new array from this but only with string values and for that i am currently using Array.filter method and it is working but some one said that it is not supported in all browsers so my question is how can i filter my array with a cross browser solution.

This is my current code

var oldArr=['one','two','3'];
newArr=oldArr.filter(function(a){
return !a.match(/\d/);
});
alert(newArr);

Thank you in advance for your effort.

Answer 1

May be you want this

if (!Array.prototype.filter) {
    Array.prototype.filter = function(fun /*, thisp*/) {
        var len = this.length >>> 0;
        if (typeof fun != "function") {
            throw new TypeError();
        }

        var res = [];
        var thisp = arguments[1]; 
        for (var i = 0; i < len; i++) {
            if (i in this) {
                var val = this[i];
                if (fun.call(thisp, val, i, this)) {
                    res.push(val);
                }
            }
        }

        return res;
    };
}

var oldArr = ['one','two','3'];
    newArr=oldArr.filter(function(a){
    return !a.match(/\d/);
});
console.log(newArr);

Reference: MDN.

DEMO.