extending_function.js

/* Defines a function in the prototype of all
 * functions:
 *
 * Usage: Function.method('add', add);
 *        var f = function() {};
 *        f.add(1,2);
 */

Function.prototype.method = function (name, func) {
    // Creates a new property; this points to the Function object.
    this.prototype[name] = func;
    // Why it returns?
    //return this;
}

var add = function(a, b) {
    return a+b;
}

Function.method('add', add);
var f = function() {};

print(f.add(1,2));

Number.method('integer', function () {
        return Math[this < 0 ? 'ceil' : 'floor'](this);
        });

print((-10/3).integer());