19 lines
461 B
JavaScript
19 lines
461 B
JavaScript
'use strict';
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var $TypeError = require('es-errors/type');
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var isObject = require('es-object-atoms/isObject');
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var Get = require('./Get');
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var ToLength = require('./ToLength');
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// https://262.ecma-international.org/11.0/#sec-lengthofarraylike
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module.exports = function LengthOfArrayLike(obj) {
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if (!isObject(obj)) {
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throw new $TypeError('Assertion failed: `obj` must be an Object');
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}
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return ToLength(Get(obj, 'length'));
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};
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// TODO: use this all over
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