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JavaScript Introduction to Programming Objects and Arrays Quiz

Posted by Gary Christie
Gary Christie
5,151 Points

I don't get how this is right?

What is the console output for the following code?

var fruits = ["Apple", "Orange","Banana","Grapes","Pomegranate"];

for ( var i=0; i < 3; i+=1) { console.log(fruits[i]); }

Well done! That's the correct answer.

A
Apple Orange Banana

Is not this suppose to loop from 0 to 3 which would be " Apple, Orange, Banana, Grape"

3 Answers

Ken Alger
STAFF
Ken Alger
Treehouse Teacher
Ken Alger
Ken Alger
Treehouse Teacher

Gary;

The correct answer is Apple Orange Banana. Since it is a zero based array, it starts at 0, apple, and continues while i is less than 3 and then it stops. The index numbers for these array items would be:

0 - Apple

1 - Orange

2 - Banana

3 - Grapes

4 - Pomegranate

If you wanted Grapes to be included in the output you would have to have it count until i < 4.

Does that help clarify anything?

Ken

Gary Christie
Gary Christie
5,151 Points

This definetely helped. Thank you

Sreng Hong
Sreng Hong
15,083 Points
Sreng Hong
Sreng Hong
15,083 Points

Hi Gary

The condition is i < 3, so 3 is not less than 3.

3 < 3 => false

Do you get what I mean?

Sreng Hong
Sreng Hong
15,083 Points
Sreng Hong
Sreng Hong
15,083 Points

Grape supposes to be friuts[3], but i only i = 0, 1, 2

Gary Christie
Gary Christie
5,151 Points

Thank you Sreng

Jeff Busch
Jeff Busch
19,287 Points
Jeff Busch
Jeff Busch
19,287 Points

Hi Gary,

In the for loop control i will only get to two (i < 3).

fruits[0] = "Apple"; fruits[1] = "Orange"; fruits[2] = "Banana"; fruits[3] = "Grapes"; fruits[4] = "Pomegranate";

Gary Christie
Gary Christie
5,151 Points

Thank you Jeff