JavaScript Fundamentals
Practise modern JavaScript fundamentals — values and types, equality and coercion basics, strings and templates, arrays and their methods, objects, functions and arrow functions, let and const scope, loops, and reading common errors.
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Topics
10 sections · 120 questions- Values and typesLesson · ≈6 minDrill12 q
- Equality and coercionLesson · ≈6 minDrill12 q
- Strings and templatesLesson · ≈6 minDrill12 q
- ArraysLesson · ≈6 minDrill12 q
- Array methodsLesson · ≈6 minDrill12 q
- Objects and propertiesLesson · ≈5 minDrill12 q
- Functions and arrowsLesson · ≈5 minDrill12 q
- Scope: let, const and varLesson · ≈5 minDrill12 q
- Loops and iterationLesson · ≈5 minDrill12 q
- Common errorsLesson · ≈5 minDrill12 q
Frequently asked questions
How many questions does JavaScript Fundamentals have?
120 questions
Is this the official test?
Questena wrote these questions using the source shown below.