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x/ramda/internal/_isArrayLike.js

:ram: Practical functional Javascript
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import _curry1 from './_curry1';import _isArray from './_isArray';import _isString from './_isString';

/** * Tests whether or not an object is similar to an array. * * @private * @category Type * @category List * @sig * -> Boolean * @param {*} x The object to test. * @return {Boolean} `true` if `x` has a numeric length property and extreme indices defined; `false` otherwise. * @example * * _isArrayLike([]); //=> true * _isArrayLike(true); //=> false * _isArrayLike({}); //=> false * _isArrayLike({length: 10}); //=> false * _isArrayLike({0: 'zero', 9: 'nine', length: 10}); //=> true */var _isArrayLike = _curry1(function isArrayLike(x) { if (_isArray(x)) { return true; } if (!x) { return false; } if (typeof x !== 'object') { return false; } if (_isString(x)) { return false; } if (x.nodeType === 1) { return !!x.length; } if (x.length === 0) { return true; } if (x.length > 0) { return x.hasOwnProperty(0) && x.hasOwnProperty(x.length - 1); } return false;});export default _isArrayLike;