tunnckocoreerror-format 
Allows you to customize the toString method of passed
err. Also adds useful properties likeline,filenameandcolumnto theerrobject.
Install
npm i error-format --saveUsage
For more use-cases see the tests
const errorFormat = require('error-format')errorFormat
Adds bypassed
.toStringwhich you can customize through thefmtfunction.
Params
<err>{Error}: error object/instance[fmt]{Function}: custom format functionreturns{Error}: what comes from input (instance of error)
Example
var errorFormat = require('error-format')
var err = new TypeError('baz qux')
console.log(err.toString())
// => TypeError: baz qux
err = errorFormat(err, function fmt (headline) {
if (this.message.indexOf('baz') !== -1) {
headline += ' --- Line: ' + this.line
}
if (this.message.indexOf('qux') !== -1) {
headline += ' --- Column: ' + this.column
}
return headline
})
console.log(err.toString())
// => TypeError: baz qux --- Line: 4 --- Column: 11Related
- error-base: Create custom Error classes. | homepage
- is-typeof-error: Check that given value is any type of error and… more | homepage
- kind-error: Base class for easily creating meaningful and quiet by default… more | homepage
- kind-of: Get the native type of a value. | homepage
- kind-of-extra: Additional functionality to
kind-oftype check utility, support promises, generators,… more | homepage - kind-of-types: List of all javascript types. Used and useful for checking,… more | homepage
Contributing
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
But before doing anything, please read the CONTRIBUTING.md guidelines.
Charlike Make Reagent 
