Sha256: e5edd9e892022dccb428557ef84abcac0dfbadd4b78a6c2cdb7f0c1a9ca46acd
Contents?: true
Size: 913 Bytes
Versions: 243
Compression:
Stored size: 913 Bytes
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $TypeError = GetIntrinsic('%TypeError%');
var $hasInstance = GetIntrinsic('Symbol.hasInstance', true);
var Call = require('./Call');
var GetMethod = require('./GetMethod');
var IsCallable = require('./IsCallable');
var OrdinaryHasInstance = require('./OrdinaryHasInstance');
var ToBoolean = require('./ToBoolean');
var Type = require('./Type');
// https://262.ecma-international.org/6.0/#sec-instanceofoperator
module.exports = function InstanceofOperator(O, C) {
if (Type(O) !== 'Object') {
throw new $TypeError('Assertion failed: Type(O) is not Object');
}
var instOfHandler = $hasInstance ? GetMethod(C, $hasInstance) : void 0;
if (typeof instOfHandler !== 'undefined') {
return ToBoolean(Call(instOfHandler, C, [O]));
}
if (!IsCallable(C)) {
throw new $TypeError('`C` is not Callable');
}
return OrdinaryHasInstance(C, O);
};
Version data entries
243 entries across 27 versions & 2 rubygems