JavaScript courses: small tools you type and run in your browser
Build small JavaScript tools that save a business real time, in the free JSFiddle: an instant quote calculator for your website, Net 30 due-date reminders that flag overdue invoices, and a contacts table filled live from an API.
Every module is a hands-on practice on real JSFiddle screens where you type every line yourself, a few lines per step, then a checklist to build it again in JSFiddle. The course comes with a one-page cheat sheet and the few terms you meet most.
Who it is for: owners, office managers and marketers who want their web pages to do a little more, or want to read code a developer or an AI assistant wrote. A browser is enough: no install and no account, and the made-up businesses in it use the same code you then adapt to your own prices and data.
JSFiddle1 course
JavaScript for Small Business Jump Start
Build three small, useful JavaScript tools in the free JSFiddle, typing every line yourself: an instant quote calculator for your website, due-date reminders for open invoices, and a contacts table filled live from an API.
The 3 modules
- JavaScript: An Instant Quote Calculator for Your WebsiteJSFiddle · Beginner · ~12 min
- JavaScript: Turn Invoice Dates into Due-Date RemindersJSFiddle · Beginner · ~15 min
- JavaScript: Pull Contacts from an API into a TableJSFiddle · Beginner · ~12 min
Cheat sheet: JavaScript for Small Business Cheat Sheet · PDF
Words to know: JavaScript fetch (JavaScript) API endpoint
