3.7 KiB
3.7 KiB
title |
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Boo Who |
Remember to use Read-Search-Ask
if you get stuck. Try to pair program and write your own code
Problem Explanation:
This program is very simple, the trick is to understand what a boolean primitive is. The programs requires a true or false answer.
Relevant Links
Hint: 1
- You will need to check for the type of the parameter to see if it is a boolean.
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Hint: 2
- To check for the type of a parameter, you can use
typeof
.
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Hint: 3
- Since you must return true or false you can use if statements or just have it return the boolean used for the if statement.
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Spoiler Alert!
Solution ahead!
Basic Code Solution:
function booWho(bool) {
return typeof bool === 'boolean';
}
// test here
booWho(null);
Code Explanation:
Uses the operator typeof
to check if the variable is a boolean. If it is, it will return true
. Otherwise, if it is any other type it will return false
.
Relevant Links
- Using typeof
- typeof
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