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JavaScript JavaScript Loops Simplify Repetitive Tasks with Loops Create a do...while loop

Posted by Hanwen Zhang
Hanwen Zhang
20,084 Points

Why do we need a "let" function to do loops

let secret; do { secret = prompt("What is the secret password?"); } while (secret !== 'sesame');

1 Answer

Jonathan Grieve
MOD
Jonathan Grieve
Treehouse Moderator 91,252 Points
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,252 Points

You could probably get away with using var keywords but the reason we use let rather than const is because once variables are defined in const keywords the values in them cannot be changed.

So in this code let is not a function It's keyword that defines scope and capabilities of the variable you're using. :-)

Hanwen Zhang
Hanwen Zhang
20,084 Points

Thank you, Jonathan