error-stack

Parse and manipulate error.stack

Install

``sh
$ npm i error-stack
`

Usage

`js
const parse = require('error-stack')
const {stack} = new Error('foo')

console.log(stack)
// Error: foo
// at repl:1:11
// at Script.runInThisContext (vm.js:123:20)

const parsed = parse(stack)

parsed.type // Error

parsed.message // foo

parsed.traces
// [
// {
// callee: undefined,
// source: 'repl',
// line: 1,
// col: 11
// },
// {
// callee: 'Script.runInThisContext',
// source: 'vm.js',
// line: 123,
// col: 20
// }
// ]

parsed
.filter(({callee}) => !!callee)
.format()
// Error: foo
// at Script.runInThisContext (vm.js:123:20)
`

$3

Error type

$3

The message used by Error constructor

$3

`ts
interface Source {
// The source of the the callee
source: string
line?: number
col?: number
}

interface Trace extends Source{
callee: string
// Whether the callee is 'eval'
eval?: boolean
// The source location inside eval content
evalTrace: Source
}
`

$3

- filterFunction Function the same as the callback function of Array.prototype.filter(callback)

Filters the current traces

$3

Format object parsed`

License

MIT