From abd94a7f5a50f43c797a11b53549ae48fff667c3 Mon Sep 17 00:00:00 2001 From: Florian Dold Date: Mon, 10 Oct 2016 03:43:44 +0200 Subject: add node_modules to address #4364 --- node_modules/core-js/modules/es6.function.has-instance.js | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 node_modules/core-js/modules/es6.function.has-instance.js (limited to 'node_modules/core-js/modules/es6.function.has-instance.js') diff --git a/node_modules/core-js/modules/es6.function.has-instance.js b/node_modules/core-js/modules/es6.function.has-instance.js new file mode 100644 index 000000000..ae294b1f1 --- /dev/null +++ b/node_modules/core-js/modules/es6.function.has-instance.js @@ -0,0 +1,13 @@ +'use strict'; +var isObject = require('./_is-object') + , getPrototypeOf = require('./_object-gpo') + , HAS_INSTANCE = require('./_wks')('hasInstance') + , 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; +}}); \ No newline at end of file -- cgit v1.2.3