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

david mchale
david mchale
1,434 Points
Posted by david mchale
david mchale
1,434 Points

why not just use the variable?

Inside the while loop he uses 'guess = getRandomNumber(upper);' why not just use the global variable the above was assigned to so it reads, 'guess = randomNumber;'

1 Answer

Sam Donald
Sam Donald
36,305 Points
Sam Donald
Sam Donald
36,305 Points

Think of this program as a Pick any number trick a magician might play on you.

The global randomNumber variable is the number you picked at the beginning of the trick/program. The magician can't know that number they have to guess it.

When the while loop runs guess is assigned the returned randomly generated number from the getRandomNumber() function.

If guess was set to equal randomNumber it would alway pass on the second iteration.