xl-infinite-tree/lib/extend.js

A browser-ready tree library that can efficiently display a large amount of data using infinite scrolling.

'use strict';

/* eslint no-restricted-syntax: 0 */
var extend = function extend(target) {
    for (var _len = arguments.length, sources = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        sources[_key - 1] = arguments[_key];
    }

    if (target === undefined || target === null) {
        throw new TypeError('Cannot convert undefined or null to object');
    }

    var output = Object(target);
    for (var index = 0; index < sources.length; index++) {
        var source = sources[index];
        if (source !== undefined && source !== null) {
            for (var key in source) {
                if (Object.prototype.hasOwnProperty.call(source, key)) {
                    output[key] = source[key];
                }
            }
        }
    }
    return output;
};

module.exports = extend;