tra-analysis/website/functions/node_modules/mixin-deep/index.js
2019-01-06 13:14:45 -06:00

54 lines
872 B
JavaScript

'use strict';
var isExtendable = require('is-extendable');
var forIn = require('for-in');
function mixinDeep(target, objects) {
var len = arguments.length, i = 0;
while (++i < len) {
var obj = arguments[i];
if (isObject(obj)) {
forIn(obj, copy, target);
}
}
return target;
}
/**
* Copy properties from the source object to the
* target object.
*
* @param {*} `val`
* @param {String} `key`
*/
function copy(val, key) {
if (key === '__proto__') {
return;
}
var obj = this[key];
if (isObject(val) && isObject(obj)) {
mixinDeep(obj, val);
} else {
this[key] = val;
}
}
/**
* Returns true if `val` is an object or function.
*
* @param {any} val
* @return {Boolean}
*/
function isObject(val) {
return isExtendable(val) && !Array.isArray(val);
}
/**
* Expose `mixinDeep`
*/
module.exports = mixinDeep;