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.
13 lines
655 B
13 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");
|
|
};
|