Projekt

Obecné

Profil

Stáhnout (961 Bajtů) Statistiky
| Větev: | Revize:
1
var baseGetTag = require('./_baseGetTag'),
2
    isObjectLike = require('./isObjectLike'),
3
    isPlainObject = require('./isPlainObject');
4

    
5
/** `Object#toString` result references. */
6
var domExcTag = '[object DOMException]',
7
    errorTag = '[object Error]';
8

    
9
/**
10
 * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
11
 * `SyntaxError`, `TypeError`, or `URIError` object.
12
 *
13
 * @static
14
 * @memberOf _
15
 * @since 3.0.0
16
 * @category Lang
17
 * @param {*} value The value to check.
18
 * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
19
 * @example
20
 *
21
 * _.isError(new Error);
22
 * // => true
23
 *
24
 * _.isError(Error);
25
 * // => false
26
 */
27
function isError(value) {
28
  if (!isObjectLike(value)) {
29
    return false;
30
  }
31
  var tag = baseGetTag(value);
32
  return tag == errorTag || tag == domExcTag ||
33
    (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
34
}
35

    
36
module.exports = isError;
(366-366/571)