core-js/internals/date-to-primitive.js

Standard library

'use strict';
var anObject = require('../internals/an-object');
var toPrimitive = require('../internals/to-primitive');

module.exports = function (hint) {
  if (hint !== 'string' && hint !== 'number' && hint !== 'default') {
    throw TypeError('Incorrect hint');
  } return toPrimitive(anObject(this), hint !== 'number');
};