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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define a simple function that logs 'Hi there!' to the console.
💡 Hint: Remember to use the 'function' keyword.
Question 2
Easy
How do you call the function sayHi?
💡 Hint: Functions are called by their name followed by parentheses.
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
What keyword is used to define a function in JavaScript?
- def
- function
- func
💡 Hint: This keyword starts the function definition.
Question 2
True or False: A function can accept multiple parameters.
- True
- False
💡 Hint: Think about the syntax when defining functions.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a function multiply that takes two numbers, multiplies them, and returns the result. Additionally, validate the parameters to ensure they are numbers.
💡 Hint: Use 'typeof' to check if inputs are numbers.
Question 2
Write a function countLetters that takes a string as input and returns the number of letters in that string, ignoring spaces and punctuation.
💡 Hint: Think about how to remove unwanted characters from the string.
Challenge and get performance evaluation