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Asad Sajon
Courses Plus Student 918 PointsDon't understand do...while loop
Hi,i'm feeling pained.Don't understand the 'do..while' loop.I have learned 'While' and 'For' loop with so much interest.But don't understand the 'do...while' loop.Really feeling disappointed.Anyone can help me?
3 Answers
Samuel Webb
25,370 PointsWith a while loop, it could potentially never run. If the condition is false, you will never run the code inside.
while (false) {
console.log("I will not run since my condition is false.");
}
The only difference with a do...while loop is that no matter what, it will run the first time. The reason for this is that, unlike the while loop, it doesn't evaluate the condition until after the first iteration of the loop has run.
do {
console.log("I'll run once even though my condition is false;");
} while (false);
This is the only difference between a while and a do...while loop. If you understand a while loop, you pretty much understand a do...while loop.
Hopefully this clears things up for you.
Samuel Webb
25,370 PointsNo problem. Glad to help.
Asad Sajon
Courses Plus Student 918 PointsThanks a lot Samuel