nodejs / nodejs/node

Add console.log() %c support for parity with browsers, Deno, and Bun

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#52,350 3 comments 3 reactions 0 assignees View on GitHub

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console stale
Dominant language
JavaScript
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Avg merge
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Merged PRs (30d)
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Description

would be fixed by https://github.com/nodejs/node/pull/49205

My attempt at a compat table of ANSI and %c:

%c ANSI
Node.js ☑️
Deno ☑️ ☑️
Bun ☑️ ☑️
Chrome ☑️ ☑️
Firefox ☑️
Safari ☑️ ?

Why this would be a good idea:

  • Feature parity with other desktop JavaScript runtimes like Deno and Bun
  • Allow documentation authors to recommend using %c instead of ANSI for more compatibility without "%c works everywhere except Node.js" clauses
  • %c is ignored in unsupported environments (like current Node.js) whereas ANSI causes jargon to be printed (particularly in Firefox). Thus, encouraging %c is more "progressive enhancement" or "graceful degradation" than ANSI ??

basically just "everyone else is doing it, so it's probably a good idea to conform to what users expect"

previous issue https://github.com/nodejs/node/issues/29605

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with pull request #49205 and the previous issue #29605, then review any console.log formatting entry points or tests identified there. Done means Node.js supports console.log() %c formatting consistently with the behavior described in this issue.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, node.js
Domain
cli
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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