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error-format

1.0.1 • Public • Published

error-format npmjs.com The MIT License

Allows you to customize the toString method of passed err. Also adds useful properties like line, filename and column to the err object.

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Install

npm i error-format --save

Usage

For more use-cases see the tests

const errorFormat = require('error-format')

errorFormat

Adds bypassed .toString which you can customize through the fmt function.

Params

  • <err> {Error}: error object/instance
  • [fmt] {Function}: custom format function
  • returns {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: 11

Related

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.

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install

npm i error-format

Downloadsweekly downloads

9

version

1.0.1

license

MIT

homepage

github.com

repository

Gitgithub

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