Skills

Browse testable skills

Browse the skills you can be tested on, grouped by category. Each skill shows the exam formats you can take it in — open a skill to see the full format breakdown and a short plan to start preparing.

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Web Development skills

3 skills

  • JavaScript Fundamentals

    Web DevelopmentFoundational

    Verify practical JavaScript for everyday web and application work — the language core, async patterns, and the DOM.

    • Proctored exam
    • Untimed practice
    • Adaptive mode
    Open to start preparing

  • React Development

    Web DevelopmentIntermediate

    Demonstrate component design, hooks, state, and rendering behaviour for production React interfaces.

    • Proctored exam
    • Adaptive mode
    Open to start preparing

  • TypeScript Essentials

    Web DevelopmentIntermediate

    Show you can model data with types, use generics and narrowing, and keep a TypeScript codebase type-safe.

    • Proctored exam
    • Untimed practice
    Open to start preparing