You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
12 lines
655 B
12 lines
655 B
// 7.1.1 ToPrimitive(input [, PreferredType]) |
|
var isObject = require('./_is-object'); |
|
// instead of the ES6 spec version, we didn't implement @@toPrimitive case |
|
// and the second argument - flag - preferred type is a string |
|
module.exports = function (it, S) { |
|
if (!isObject(it)) return it; |
|
var fn, val; |
|
if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val; |
|
if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val; |
|
if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val; |
|
throw TypeError("Can't convert object to primitive value"); |
|
};
|
|
|