mirror of
https://github.com/whoisclebs/lodash.git
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85 lines
2.6 KiB
JavaScript
85 lines
2.6 KiB
JavaScript
/**
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* lodash 3.2.1 (Custom Build) <https://lodash.com/>
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* Build: `lodash modularize exports="npm" -o ./`
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* Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
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* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
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* Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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* Available under MIT license <https://lodash.com/license>
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*/
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/** Used to determine if values are of the language type `Object`. */
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var objectTypes = {
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'function': true,
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'object': true
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};
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/** Detect free variable `exports`. */
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var freeExports = (objectTypes[typeof exports] && exports && !exports.nodeType) ? exports : null;
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/** Detect free variable `module`. */
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var freeModule = (objectTypes[typeof module] && module && !module.nodeType) ? module : null;
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/** Detect free variable `global` from Node.js. */
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var freeGlobal = checkGlobal(freeExports && freeModule && typeof global == 'object' && global);
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/** Detect free variable `self`. */
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var freeSelf = checkGlobal(objectTypes[typeof self] && self);
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/** Detect free variable `window`. */
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var freeWindow = checkGlobal(objectTypes[typeof window] && window);
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/** Detect `this` as the global object. */
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var thisGlobal = checkGlobal(objectTypes[typeof this] && this);
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/**
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* Used as a reference to the global object.
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*
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* The `this` value is used if it's the global object to avoid Greasemonkey's
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* restricted `window` object, otherwise the `window` object is used.
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*/
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var root = freeGlobal || ((freeWindow !== (thisGlobal && thisGlobal.window)) && freeWindow) || freeSelf || thisGlobal || Function('return this')();
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/**
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* Checks if `value` is a global object.
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*
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* @private
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* @param {*} value The value to check.
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* @returns {null|Object} Returns `value` if it's a global object, else `null`.
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*/
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function checkGlobal(value) {
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return (value && value.Object === Object) ? value : null;
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}
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/* Built-in method references for those with the same name as other `lodash` methods. */
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var nativeIsFinite = root.isFinite;
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/**
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* Checks if `value` is a finite primitive number.
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*
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* **Note:** This method is based on [`Number.isFinite`](https://mdn.io/Number/isFinite).
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*
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* @static
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* @memberOf _
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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 finite number, else `false`.
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* @example
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*
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* _.isFinite(3);
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* // => true
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*
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* _.isFinite(Number.MAX_VALUE);
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* // => true
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*
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* _.isFinite(3.14);
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* // => true
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*
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* _.isFinite(Infinity);
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* // => false
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*/
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function isFinite(value) {
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return typeof value == 'number' && nativeIsFinite(value);
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}
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module.exports = isFinite;
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