| 123456789101112 |
- // 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");
- };
|
