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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Declare a variable using 'let' to store your first name.
💡 Hint: Remember to use quotes for string values.
Question 2
Easy
What keyword would you use to declare a constant?
💡 Hint: Think about which variable type shouldn't change.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
Which keyword is used for variables that can change?
- const
- let
- var
💡 Hint: Remember the function of each keyword.
Question 2
Is 'var' recommended for use in modern JavaScript?
- True
- False
💡 Hint: Consider the differences between 'let', 'const', and 'var'.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You declared a variable named 'value', but then decided to use 'Value' instead. What issues might arise, and how can you address them?
💡 Hint: Consider how similar names may lead to hard-to-track bugs.
Question 2
Given the following declaration, identify problems:
What would happen here?
💡 Hint: Analyze the differences between 'var', 'let', and 'const' in terms of reassignment.
Challenge and get performance evaluation