122 lines
3.3 KiB
JavaScript
122 lines
3.3 KiB
JavaScript
/**
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* lodash (Custom Build) <https://lodash.com/>
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* Build: `lodash modularize exports="npm" -o ./`
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* Copyright jQuery Foundation and other contributors <https://jquery.org/>
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* Released under MIT license <https://lodash.com/license>
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* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
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* Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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*/
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/** `Object#toString` result references. */
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var regexpTag = '[object RegExp]';
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/** Detect free variable `global` from Node.js. */
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var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
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/** Detect free variable `exports`. */
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var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
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/** Detect free variable `module`. */
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var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
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/** Detect the popular CommonJS extension `module.exports`. */
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var moduleExports = freeModule && freeModule.exports === freeExports;
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/** Detect free variable `process` from Node.js. */
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var freeProcess = moduleExports && freeGlobal.process;
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/** Used to access faster Node.js helpers. */
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var nodeUtil = (function() {
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try {
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return freeProcess && freeProcess.binding('util');
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} catch (e) {}
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}());
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/* Node.js helper references. */
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var nodeIsRegExp = nodeUtil && nodeUtil.isRegExp;
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/**
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* The base implementation of `_.unary` without support for storing metadata.
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*
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* @private
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* @param {Function} func The function to cap arguments for.
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* @returns {Function} Returns the new capped function.
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*/
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function baseUnary(func) {
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return function(value) {
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return func(value);
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};
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}
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/** Used for built-in method references. */
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var objectProto = Object.prototype;
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/**
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* Used to resolve the
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* [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
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* of values.
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*/
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var objectToString = objectProto.toString;
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/**
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* The base implementation of `_.isRegExp` without Node.js optimizations.
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*
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* @private
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
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*/
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function baseIsRegExp(value) {
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return isObject(value) && objectToString.call(value) == regexpTag;
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}
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/**
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* Checks if `value` is the
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* [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
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* of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
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*
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* @static
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* @memberOf _
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* @since 0.1.0
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* @category Lang
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is an object, else `false`.
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* @example
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*
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* _.isObject({});
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* // => true
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*
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* _.isObject([1, 2, 3]);
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* // => true
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*
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* _.isObject(_.noop);
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* // => true
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*
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* _.isObject(null);
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* // => false
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*/
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function isObject(value) {
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var type = typeof value;
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return !!value && (type == 'object' || type == 'function');
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}
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/**
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* Checks if `value` is classified as a `RegExp` object.
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*
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* @static
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* @memberOf _
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* @since 0.1.0
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* @category Lang
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
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* @example
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*
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* _.isRegExp(/abc/);
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* // => true
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*
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* _.isRegExp('/abc/');
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* // => false
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*/
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var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;
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module.exports = isRegExp;
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