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releases/docs/book/node_modules/lodash/isError.js
T
Torin Sandall fa9ae9437c Vendor node_modules for gitbook
The gitbook install has been incredibly flaky due to it's dependency on
npm. This commit simply vendors the node_modules so that each time we
build the site the process doesn't have to re-run gitbook install.

Signed-off-by: Torin Sandall <torinsandall@gmail.com>
2018-11-26 15:10:14 -08:00

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;