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on this file was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago |
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1 | import _curry1 from "./_curry1.js";
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2 | import _isArray from "./_isArray.js";
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3 | import _isString from "./_isString.js";
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4 | /**
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5 | * Tests whether or not an object is similar to an array.
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6 | *
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7 | * @private
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8 | * @category Type
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9 | * @category List
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10 | * @sig * -> Boolean
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11 | * @param {*} x The object to test.
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12 | * @return {Boolean} `true` if `x` has a numeric length property and extreme indices defined; `false` otherwise.
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13 | * @example
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14 | *
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15 | * _isArrayLike([]); //=> true
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16 | * _isArrayLike(true); //=> false
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17 | * _isArrayLike({}); //=> false
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18 | * _isArrayLike({length: 10}); //=> false
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19 | * _isArrayLike({0: 'zero', 9: 'nine', length: 10}); //=> true
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20 | * _isArrayLike({nodeType: 1, length: 1}) // => false
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21 | */
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22 |
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23 | var _isArrayLike =
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24 | /*#__PURE__*/
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25 | _curry1(function isArrayLike(x) {
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26 | if (_isArray(x)) {
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27 | return true;
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28 | }
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29 |
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30 | if (!x) {
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31 | return false;
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32 | }
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33 |
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34 | if (typeof x !== 'object') {
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35 | return false;
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36 | }
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37 |
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38 | if (_isString(x)) {
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39 | return false;
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40 | }
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41 |
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42 | if (x.length === 0) {
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43 | return true;
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44 | }
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45 |
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46 | if (x.length > 0) {
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47 | return x.hasOwnProperty(0) && x.hasOwnProperty(x.length - 1);
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48 | }
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49 |
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50 | return false;
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51 | });
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52 |
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53 | export default _isArrayLike; |
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