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Rich Trott
f44969a5ab
We have been stalled on ESLint 3.8.0 for some time. Current ESLint is 3.13.0. We have been unable to upgrade because of more aggressive reporting on some rules, including indentation. ESLint configuration options and bugfixes are now such that we can reasonably upgrade. PR-URL: https://github.com/nodejs/node/pull/10561 Reviewed-By: Teddy Katz <teddy.katz@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
38 lines
993 B
JavaScript
38 lines
993 B
JavaScript
var baseGetTag = require('./_baseGetTag'),
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isObject = require('./isObject');
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/** `Object#toString` result references. */
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var asyncTag = '[object AsyncFunction]',
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funcTag = '[object Function]',
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genTag = '[object GeneratorFunction]',
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proxyTag = '[object Proxy]';
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/**
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* Checks if `value` is classified as a `Function` 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 function, else `false`.
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* @example
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*
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* _.isFunction(_);
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* // => true
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*
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* _.isFunction(/abc/);
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* // => false
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*/
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function isFunction(value) {
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if (!isObject(value)) {
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return false;
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}
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// The use of `Object#toString` avoids issues with the `typeof` operator
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// in Safari 9 which returns 'object' for typed arrays and other constructors.
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var tag = baseGetTag(value);
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return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
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}
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module.exports = isFunction;
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