tui-code-snippet/object/extend.js

TOAST UI Utility: CodeSnippet

/**
 * @fileoverview Extend the target object from other objects.
 * @author NHN FE Development Lab <dl_javascript@nhn.com>
 */

'use strict';

/**
 * @module object
 */

/**
 * Extend the target object from other objects.
 * @param {object} target - Object that will be extended
 * @param {...object} objects - Objects as sources
 * @returns {object} Extended object
 * @memberof module:object
 */
function extend(target, objects) { // eslint-disable-line no-unused-vars
  var hasOwnProp = Object.prototype.hasOwnProperty;
  var source, prop, i, len;

  for (i = 1, len = arguments.length; i < len; i += 1) {
    source = arguments[i];
    for (prop in source) {
      if (hasOwnProp.call(source, prop)) {
        target[prop] = source[prop];
      }
    }
  }

  return target;
}

module.exports = extend;