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Tutorial 10

Midpoint Project Share-Outs

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Announcements

  • Quiz 2: in a little over a week (4/29). You need to study for it.
  • Please complete all of the sample quizzes on your own. It’s the absolute best way to study.

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Practice Quiz Problem: Use a Table to keep track!

What prints to the screen?�

let a = 1;

let b = 2;

while (b < 15) {

a *= 2;

b += a;

console.log(a, b);

}

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# of iterations

a

b

Output

initial values

​

​

​

end of first iteration

​

​

​

end of second iteration

​

​

​

end of third iteration

​

​

​

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Tip: Set Up a Table

let a = 1;

let b = 2;

while (b < 15) {

a *= 2;

b += a;

console.log(a, b);

}

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# of iterations

a

b

Output

initial values

1

2

–

end of first iteration

2

4

2 4

end of second iteration

4

8

4 8

end of third iteration

8

16

8 16

Answer:

2 4

4 8

8 16

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Other Practice Problems

Let’s practice some other sample problems…

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