1.2.1 Basics
Every entry filed under Basics and its subtopics.
Level
- Beginner 4 (selected, select to remove)
- Intermediate 0
- Advanced 0
What kind of help
Clear filters
- Guided project 0
- Explains an idea 1 (selected, select to remove)
- Step by step 0
- Cheat sheet 2
- Fixes an error 1
1 entry match these filters
- 0016 let, const and var: variables and scope in JavaScript Use const by default, let when a value must change, and avoid var. The difference is about scope: where a variable is… Beginner · Explains an idea · Any system Article Basics 15 Oct 2026