Arrays Arrays are the main tool in JavaScript. They use contiguous memory. This allows you to access any element by its index instantly. - push: Adds an element to the end. - unshift: Adds an element ...

Read the docs and eat your vegetables. Immutable data cannot be changed once created, leading to much simpler application development, no defensive copying, and enabling advanced memoization and ...

𝗟𝗲𝘁𝘀 𝗦𝘁𝗮𝗿𝘁 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 JavaScript makes static webpages interactive. It reads code line by line. You put it in script tags in HTML. You use variables to store data. - Use let for ...

Most rules target JavaScript and TypeScript, but some also lint CSS, HTML, JSON, and Markdown when used with the matching ESLint language plugin.