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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops A Closer Look at Loop Conditions

Posted by Eric Araujo-Martínez
Eric Araujo-Martínez
4,011 Points

if the computer guesses the correct number at first attempt, does it mean our counter remains in zero?

I mean, if the loop condition if evaluated first and it is false from the very begining, braking the loop, then if the computer gets the correct number in the first attemp the counter never goes to 1 and in the document write it says "0 attemps"?.

1 Answer

jsdevtom
jsdevtom
16,963 Points
jsdevtom
jsdevtom
16,963 Points

At 5:00 in the video, Dave says "The guess variable doesn't have any value. So when we first get to the loop the JavaScript interpreter evaluates this condition. Does guess not equal random number? Why, yes. Because guess has no value, and it doesn't match random number. So, we enter the loop and we guess."

This basically means that it is impossible for the loop to guess the number on the first attempt because guess is not yet assigned a value. So to answer your question: our counter can not remain in zero.

:-)

Eric Araujo-Martínez
Eric Araujo-Martínez
4,011 Points

Thanks a lot.

jsdevtom
jsdevtom
16,963 Points
jsdevtom
jsdevtom
16,963 Points

Glad I could help