Function extend

MathBox/mathbox-core.js:7749–7749

(child, parent)

},{}],32:[function(require,module,exports){
var Group, Node,
  extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
  hasProp = {}.hasOwnProperty;

Node = require('./node');