Copy-ready prompts for javascript. Replace the [brackets] with your own details for the best results.
Understand unfamiliar JavaScript line by line.
Explain this JavaScript code to someone with [beginner/intermediate] experience: ```js [paste code] ``` 1. Summarise what it does in 2 sentences. 2. Walk through it section by section. 3. Point out any bugs, security problems or outdated patterns. 4. Suggest one improvement with an example.
Great for code you inherited or found online. Test any suggested change.
Client-side validation with accessible error messages.
Write vanilla JavaScript (no frameworks) to validate this HTML form: ```html [paste form HTML] ``` Rules: [e.g. email required and valid, phone optional, password 12+ characters] Show errors next to each field, link them with aria-describedby, move focus to the first invalid field on submit, and don't block the user from typing. Remind me that server-side validation is still required.
Client-side validation improves usability, but always validate on the server too.