javascript-tutorial / javascript-tutorial/en.javascript.info

clarify typeof alert behavior in non browser environment

Open
#3,926 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
HTML
Stars
25.5k
Forks
4k
PR merge metrics
No merged PRs in 30d

Description

The current page mentions:

typeof alert // "function"

But in Node.js / VS Code / terminal / online JS runners → alert does NOT exist. So it's gives undefined.

typeof alert // "undefined"

Image

It should mention about the about the Browser Console

typeof alert // "function" (Browser Console)

Contributor guide

No contributing guide indexed for this repository

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 1-js/02-first-steps/05-types/article.md at the linked typeof section and compare its alert example with a browser console and a Node.js or terminal runtime. Done means the text clearly identifies the browser-only context and shows the corresponding undefined result outside the browser.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
documentation
Issue type
Documentation
Difficulty
1/5
Estimated time
Under an hour
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
55/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.