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25 lines
567 B
25 lines
567 B
'use strict';
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var $TypeError = require('es-errors/type');
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var Get = require('./Get');
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var IsCallable = require('./IsCallable');
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var isObject = require('../helpers/isObject');
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// https://262.ecma-international.org/6.0/#sec-ordinaryhasinstance
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module.exports = function OrdinaryHasInstance(C, O) {
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if (!IsCallable(C)) {
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return false;
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}
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if (!isObject(O)) {
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return false;
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}
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var P = Get(C, 'prototype');
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if (!isObject(P)) {
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throw new $TypeError('OrdinaryHasInstance called on an object with an invalid prototype property.');
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}
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return O instanceof C;
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};
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