78 lines
1.5 KiB
JavaScript
78 lines
1.5 KiB
JavaScript
/*!
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Copyright (c) 2018 Jed Watson.
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Licensed under the MIT License (MIT), see
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http://jedwatson.github.io/classnames
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*/
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/* global define */
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(function () {
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'use strict';
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var hasOwn = {}.hasOwnProperty;
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function classNames () {
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var classes = '';
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for (var i = 0; i < arguments.length; i++) {
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var arg = arguments[i];
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if (arg) {
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classes = appendClass(classes, parseValue(arg));
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}
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}
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return classes;
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}
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function parseValue (arg) {
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if (typeof arg === 'string' || typeof arg === 'number') {
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return arg;
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}
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if (typeof arg !== 'object') {
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return '';
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}
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if (Array.isArray(arg)) {
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return classNames.apply(null, arg);
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}
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if (arg.toString !== Object.prototype.toString && !arg.toString.toString().includes('[native code]')) {
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return arg.toString();
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}
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var classes = '';
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for (var key in arg) {
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if (hasOwn.call(arg, key) && arg[key]) {
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classes = appendClass(classes, key);
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}
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}
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return classes;
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}
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function appendClass (value, newClass) {
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if (!newClass) {
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return value;
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}
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if (value) {
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return value + ' ' + newClass;
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}
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return value + newClass;
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}
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if (typeof module !== 'undefined' && module.exports) {
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classNames.default = classNames;
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module.exports = classNames;
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} else if (typeof define === 'function' && typeof define.amd === 'object' && define.amd) {
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// register as 'classnames', consistent with npm package name
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define('classnames', [], function () {
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return classNames;
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});
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} else {
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window.classNames = classNames;
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}
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}());
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