mirror of
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75 lines
2.0 KiB
JavaScript
75 lines
2.0 KiB
JavaScript
/**
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* lodash 3.7.2 (Custom Build) <https://lodash.com/>
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* Build: `lodash modern modularize exports="npm" -o ./`
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* Copyright 2012-2015 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 2009-2015 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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/**
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* The base implementation of `get` without support for string paths
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* and default values.
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*
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* @private
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* @param {Object} object The object to query.
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* @param {Array} path The path of the property to get.
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* @param {string} [pathKey] The key representation of path.
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* @returns {*} Returns the resolved value.
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*/
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function baseGet(object, path, pathKey) {
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if (object == null) {
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return;
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}
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if (pathKey !== undefined && pathKey in toObject(object)) {
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path = [pathKey];
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}
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var index = 0,
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length = path.length;
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while (object != null && index < length) {
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object = object[path[index++]];
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}
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return (index && index == length) ? object : undefined;
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}
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/**
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* Converts `value` to an object if it's not one.
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*
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* @private
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* @param {*} value The value to process.
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* @returns {Object} Returns the object.
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*/
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function toObject(value) {
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return isObject(value) ? value : Object(value);
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}
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/**
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* Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
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* (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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* @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(1);
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* // => false
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*/
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function isObject(value) {
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// Avoid a V8 JIT bug in Chrome 19-20.
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// See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
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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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module.exports = baseGet;
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