charlike
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Small, fast, simple and streaming project scaffolder for myself, but not only. Supports hundreds of template engines through the @JSTransformers API or if you want custom `render` function passed through options
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JavaScript
/*!
* is-typeof-error <https://github.com/tunnckoCore/is-typeof-error>
*
* Copyright (c) 2015-2016 Charlike Mike Reagent <@tunnckoCore> (http://www.tunnckocore.tk)
* Released under the MIT license.
*/
'use strict'
var isObject = require('is-extendable')
/**
* > Check that `val` is error.
*
* **Example**
*
* ```js
* const isTypeofError = require('is-typeof-error')
* const PluginError = require('plugin-error')
* const KindError = require('kind-error')
*
* const CustomClass = function () {}
* CustomClass.prototype.foo = function () {}
*
* isTypeofError(new TypeError('test')) // => true
* isTypeofError(new KindError('test')) // => true
* isTypeofError(new SyntaxError('test')) // => true
* isTypeofError(new PluginError('test', 'msg')) // => true
*
* isTypeofError(new CustomClass('test')) // => false
* isTypeofError(new Object({a: 'b'})) // => false
* isTypeofError(new RegExp('test')) // => false
* isTypeofError(Object.create({a: 'b'})) // => false
* isTypeofError(/regex/) // => false
* isTypeofError({a: 'b'}) // => false
* ```
*
* @param {Error} `val`
* @return {Boolean}
* @api public
*/
module.exports = function isTypeofError (val) {
return isObject(val) &&
val instanceof Error &&
typeof val.message === 'string'
}