forked from zhurui/management
35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
/**
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* Lo-Dash 2.4.1 (Custom Build) <http://lodash.com/>
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* Build: `lodash modularize modern exports="npm" -o ./npm/`
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* Copyright 2012-2013 The Dojo Foundation <http://dojofoundation.org/>
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* Based on Underscore.js 1.5.2 <http://underscorejs.org/LICENSE>
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* Copyright 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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* Available under MIT license <http://lodash.com/license>
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*/
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/** Used for native method references */
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var objectProto = Object.prototype;
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/** Used to resolve the internal [[Class]] of values */
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var toString = objectProto.toString;
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/** Used to detect if a method is native */
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var reNative = RegExp('^' +
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String(toString)
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.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
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.replace(/toString| for [^\]]+/g, '.*?') + '$'
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);
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/**
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* Checks if `value` is a native function.
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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 the `value` is a native function, else `false`.
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*/
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function isNative(value) {
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return typeof value == 'function' && reNative.test(value);
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}
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module.exports = isNative;
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