Practice Javascript Basics: Syntax, Variables, And Data Types (3) - JavaScript for the Front End
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JavaScript Basics: Syntax, Variables, and Data Types

Practice - JavaScript Basics: Syntax, Variables, and Data Types

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the let keyword do?

💡 Hint: Think about flexibility in variable usage.

Question 2 Easy

What type of data would null represent?

💡 Hint: Consider what 'no value' might imply.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does 'const' do in JavaScript?

Allows changing values
Creates a constant variable
Declares a block variable

💡 Hint: Think about what the word 'constant' means.

Question 2

True or False: The data type of undefined means a variable has not been assigned any value.

True
False

💡 Hint: Consider the state of an uninitialized variable.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Write a program that checks if a number is even or odd.

💡 Hint: Consider how you would determine evenness using the modulus operator.

Challenge 2 Hard

Create a loop that counts from 1 to 100 and logs 'Fizz' for multiples of 3 and 'Buzz' for multiples of 5.

💡 Hint: Think about how you'd identify multiples using division.

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Reference links

Supplementary resources to enhance your learning experience.