17 lines
513 B
JavaScript
17 lines
513 B
JavaScript
|
import { _type_of } from "./_type_of.js";
|
||
|
|
||
|
export function _to_primitive(input, hint) {
|
||
|
if (_type_of(input) !== "object" || input === null) return input;
|
||
|
|
||
|
var prim = input[Symbol.toPrimitive];
|
||
|
|
||
|
if (prim !== undefined) {
|
||
|
var res = prim.call(input, hint || "default");
|
||
|
if (_type_of(res) !== "object") return res;
|
||
|
throw new TypeError("@@toPrimitive must return a primitive value.");
|
||
|
}
|
||
|
|
||
|
return (hint === "string" ? String : Number)(input);
|
||
|
}
|
||
|
export { _to_primitive as _ };
|