Make a color-coded stack trace from an error
const neatStack = require('neat-stack');
const request = require('request');
request('foo', err => console.error(neatStack(err)));
Useful for CLI applications — stack traces are not very important for end users but needed for authors to receive meaningful bug reports.
npm install neat-stack
const neatStack = require('neat-stack');error: Error
Return: string
It returns a refined Error#stack:
- Red-colored by ANSI escape code.
- Lines starting with
' at'are dimmed. - Any lines from Node.js internals are omitted.
- Paths are simplified by replacing a home directory with
~on POSIX.
const error = new Error('Hi');
error.stack; /* => `Error: Hi
at Object.<anonymous> (/Users/example/run.js:1:75)
at Module._compile (internal/modules/cjs/loader.js:654:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:665:10)
at Module.load (internal/modules/cjs/loader.js:566:32)
at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
at Function.Module._load (internal/modules/cjs/loader.js:498:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:695:10)
at startup (internal/bootstrap/node.js:201:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:516:3)` */
neatStack(error); /* => `\u001b[31mError: Hi\u001b[2m
at Object.<anonymous> (~/example/run.js:1:88)\u001b[22m\u001b[39m` */ISC License © 2017 - 2019 Shinnosuke Watanabe