1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
'use strict';
const CastError = require('../error/cast');
/** * Given a value, cast it to a boolean, or throw a `CastError` if the value * cannot be casted. `null` and `undefined` are considered valid. * * @param {Any} value * @param {String} [path] optional the path to set on the CastError * @return {Boolean|null|undefined} * @throws {CastError} if `value` is not one of the allowed values * @api private */
module.exports = function castBoolean(value, path) {  if (module.exports.convertToTrue.has(value)) {    return true;  }  if (module.exports.convertToFalse.has(value)) {    return false;  }
  if (value == null) {    return value;  }
  throw new CastError('boolean', value, path);};
module.exports.convertToTrue = new Set([true, 'true', 1, '1', 'yes']);module.exports.convertToFalse = new Set([false, 'false', 0, '0', 'no']);