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Start your free trialHanwen Zhang
20,084 PointsWhy 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
Treehouse Moderator 91,253 PointsYou 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
20,084 PointsHanwen Zhang
20,084 PointsThank you, Jonathan