Apply string format to all elements of array and return result

stringArrayFormat.js

// apply string format to all elements of array and return result
Array.prototype.format=function(prefix)
{
    var result = [];
    this.forEach(function(entry) {
        result.push(prefix.format(entry));
    });
    return result;
};

Example:

var misNumeros = [1,2,3];
console.log(misNumeros.format("soy el numero {0}"));
// return [ 'soy el numero 1', 'soy el numero 2', 'soy el numero 3' ]