Understanding Variables

What number will be output by the console.log command on line 7?

1 var age;

2 var year

3 age = 10;

4 year = 20;

5 year = 100;

6 age = 200;

7. 7 console.log (age)

• 10

• 200

• 20

• 300

What number will be output by the console.log command on line 5?

1 var boop = 10;

2 boop = boop + 1;

3 boop = boop + 2;

4 boop = boop + 3;

5 console.log (boop);

• 10

• 11

• 12

• 16

What number will be output by the console.log command on line 5?

1 var skit = 20;

2 var rat = 10;

3 skit = skit +5 ;

4 rat = skit + rat;

5 console.log (rat);

• 35

• 10

• 15

• 12

• 220

What will be the order of letters printed to the console when this program is run?

1 console.log ("b");

2 myFunction (letters);

3 myFunction (letters);

4 function letters

console.log"c";

console.log "d";

• abc

• bcdb

• bcdcd

• bccdd

Which of the following is true of functions?

• Programs written with functions run more quickly.

• Functions can help remove repeated code from a program

• Functions are called once but can be declared many times.

• Replacing repeated code with a function will reduce the number of commands the computer needs to run.