node_modules.core-js.library.modules.es6.function.has-instance.js Maven / Gradle / Ivy
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Maven plugin for generating graphql clients
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'use strict';
var isObject = require('./_is-object');
var getPrototypeOf = require('./_object-gpo');
var HAS_INSTANCE = require('./_wks')('hasInstance');
var FunctionProto = Function.prototype;
// 19.2.3.6 Function.prototype[@@hasInstance](V)
if (!(HAS_INSTANCE in FunctionProto)) require('./_object-dp').f(FunctionProto, HAS_INSTANCE, { value: function (O) {
if (typeof this != 'function' || !isObject(O)) return false;
if (!isObject(this.prototype)) return O instanceof this;
// for environment w/o native `@@hasInstance` logic enough `instanceof`, but add this:
while (O = getPrototypeOf(O)) if (this.prototype === O) return true;
return false;
} });