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Algorithm Boo Who
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if you get stuck. Try to pair program 👥 and write your own code 📝
This program is very simple, the trick is to understand what a boolean primitive is. The programs requires a true or false answer.
- You will need to check for the type of the parameter to see if it is a boolean.
try to solve the problem now
- To check for the type of a parameter, you can use
typeof
.
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- Since you must return true or false you can use if statements or just have it return the boolean used for the if statement.
try to solve the problem now
Solution ahead!
function booWho(bool) {
return typeof bool === 'boolean';
}
// test here
booWho(null);
🚀 Run Code
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
.
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Thanks @Rafase282 for your help with Algorithm: Boo-who
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JS Concepts
JS Language Reference
- arguments
- Array.prototype.filter
- Array.prototype.indexOf
- Array.prototype.map
- Array.prototype.pop
- Array.prototype.push
- Array.prototype.shift
- Array.prototype.slice
- Array.prototype.some
- Array.prototype.toString
- Boolean
- for loop
- for..in loop
- for..of loop
- String.prototype.split
- String.prototype.toLowerCase
- String.prototype.toUpperCase
- undefined
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