12 lines
601 B
JavaScript
12 lines
601 B
JavaScript
var isObject = require('../internals/is-object');
|
|
|
|
// `OrdinaryToPrimitive` abstract operation
|
|
// https://tc39.es/ecma262/#sec-ordinarytoprimitive
|
|
module.exports = function (input, pref) {
|
|
var fn, val;
|
|
if (pref === 'string' && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;
|
|
if (typeof (fn = input.valueOf) == 'function' && !isObject(val = fn.call(input))) return val;
|
|
if (pref !== 'string' && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;
|
|
throw TypeError("Can't convert object to primitive value");
|
|
};
|