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Modern JS Cheatsheet
Review JavaScript features and syntax frequently used in modern projects with this cheatsheet.
About Modern JS Cheatsheet
Modern JS Cheatsheet reviews JavaScript syntax frequently found in modern projects and sample code, focusing on the ES2015 (ES6) update. It provides short explanations, sample code, and external resources for topics such as variable declaration, arrow functions, promises, and imports and exports. It is not intended to teach JavaScript from the ground up and assumes basic knowledge. The author also includes personal tips that are marked as personal recommendations.
Key features
- Explains var, const, and let scope and reassignment rules
- Covers arrow functions, concision, and this behavior
- Shows object and array destructuring with sample code
- Explains array map, filter, reduce, and find methods
- Covers promises, handlers, async/await, and error handling
- Explains named and default imports and exports
Best for: Developers with basic JavaScript knowledge who want to understand modern codebases, including React.
Good for
- Provides sample code and detailed explanations for each concept
- Links to external resources such as MDN and books for further study
- Marks personal tips as personal recommendations
Watch out for
- Not intended to teach JavaScript from the ground up
- Assumes basic JavaScript knowledge
- Focuses mostly on ES2015 (ES6) concepts
Modern JS Cheatsheet at a glance
- Category
- Education & Learning › Learn to Code
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Good for
- Developers
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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