Safe(r) String.prototype extend example #js #javascript

String.prototype.js

// String.prototype.repeat
// http://jsbin.com/sifesep/edit?js,console,output
Object.defineProperty(String.prototype, 'repeat', {
    value: function debug_repeat(times, returnArray) {
        var res = [];
        var i = 0;
        for (i; i < times; i++) {
            res.push(this);
        }
        if (returnArray) {
            console.log(res);
            return res;
        }
        console.log(res.join(''));
        return res.join('');
    },
    writable: true,
    configurable: true,
    enumerable: false
});

// Example:
'Hi'.repeat(3); // -> HiHiHi
'Hi'.repeat(3, true); // -> ["Hi", "Hi", "Hi"]

So, repeat() is now part of javascript