While Loops

👨‍💼 When you don't know exactly how many iterations you need, while loops continue running as long as a condition is true.

The syntax:

while (condition) {
	// code to repeat
}

For example:

let count = 0
while (count < 3) {
	console.log(count)
	count++
}
// Logs: 0, 1, 2

🐨 Open

index.js

and:

Use a while loop to log numbers 1 through 5
Create a variable sum starting at 0, and use a while loop to add numbers 1 through 10 to it, then log the final sum
Use a while loop to find the first number greater than 1 that divides evenly into 100 (hint: start at 2 and check 100 % number === 0)

💰 Remember to update your counter inside the loop, or it will run forever!

Infinite loop warning! If the condition never becomes false, the loop runs forever and crashes your program. Always ensure your loop will eventually end.

07. Loops/02. While Loops (💪 problem)

While Loops