rafa/src/internal.js

Rafa.js is a Javascript framework for building concurrent applications.

// Shallow copy of other's properties to dest.
function extend(dest, ...others) {
  let other, property, i;
  const len = others.length;
  for (i = 0; i < len; i++) {
    other = others[i];
    for (property in other) {
      if (other.hasOwnProperty(property)) {
        dest[property] = other[property];
      }
    }
  }
  return dest;
}


// Create a prototype object on `constructor` using `Parent` and a base 
// overlayed by `prototype`.
function inherit(constructor, parent, prototype) {
  extend(extend(constructor.prototype, parent.prototype || parent), prototype);
}

// No operation returning undefined. `() => undefined`
function noop() {}

// The identity function always returns the first argument. `a => a`
function identity(a) { return a; }


// Function returns `this`. `() => this`
function contextid() { return this; }