main
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Last change
on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
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Update repo after prototype presentation
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Property mode
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100644
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File size:
565 bytes
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| 1 | 'use strict';
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| 2 |
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| 3 | var $TypeError = require('es-errors/type');
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| 4 |
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| 5 | var Get = require('./Get');
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| 6 | var IsCallable = require('./IsCallable');
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| 7 | var Type = require('./Type');
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| 8 |
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| 9 | // https://262.ecma-international.org/6.0/#sec-ordinaryhasinstance
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| 10 |
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| 11 | module.exports = function OrdinaryHasInstance(C, O) {
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| 12 | if (!IsCallable(C)) {
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| 13 | return false;
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| 14 | }
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| 15 | if (Type(O) !== 'Object') {
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| 16 | return false;
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| 17 | }
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| 18 | var P = Get(C, 'prototype');
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| 19 | if (Type(P) !== 'Object') {
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| 20 | throw new $TypeError('OrdinaryHasInstance called on an object with an invalid prototype property.');
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| 21 | }
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| 22 | return O instanceof C;
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| 23 | };
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