37 lines
961 B
JavaScript
37 lines
961 B
JavaScript
|
var baseGetTag = require('./_baseGetTag'),
|
||
|
|
isObjectLike = require('./isObjectLike'),
|
||
|
|
isPlainObject = require('./isPlainObject');
|
||
|
|
|
||
|
|
/** `Object#toString` result references. */
|
||
|
|
var domExcTag = '[object DOMException]',
|
||
|
|
errorTag = '[object Error]';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
|
||
|
|
* `SyntaxError`, `TypeError`, or `URIError` object.
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @memberOf _
|
||
|
|
* @since 3.0.0
|
||
|
|
* @category Lang
|
||
|
|
* @param {*} value The value to check.
|
||
|
|
* @returns {boolean} Returns `true` if `value` is an error object, else `false`.
|
||
|
|
* @example
|
||
|
|
*
|
||
|
|
* _.isError(new Error);
|
||
|
|
* // => true
|
||
|
|
*
|
||
|
|
* _.isError(Error);
|
||
|
|
* // => false
|
||
|
|
*/
|
||
|
|
function isError(value) {
|
||
|
|
if (!isObjectLike(value)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
var tag = baseGetTag(value);
|
||
|
|
return tag == errorTag || tag == domExcTag ||
|
||
|
|
(typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = isError;
|