1B Tynker JavaScript

An identifier cannot begin with a number. Which of the following is NOT a valid identifier?

• _identifier

• $IDENTIFIER

• 1identifier

• Identifier1

How would you call a function called “myFunction”?

• myfunction();

• myFunction();

• Call myFunction();

• call function myFunction();

Identifiers in JavaScript are case-sensitive.

• True

• False

You are not able to call the same function twice in a row.

• True

• False

Which of the following is a correct multi-line comment?

• */ hello

  World */

• */ hello

  World /*

• /*hello

  World /*

• /* hello

  World */

In JavaScript, an identifier may begin with an underscore, a letter, or a dollar sign. Which of the following is a valid identifier? Select all that apply.

• IDENT20

• _ident

• $ident1

• 20IDENT

Commented lines affect the execution of your program.

• True

• False

An identifier can begin with a number.

• True

• False

78090 is a valid identifier in JavaScript.

• True

• False

Both of the following are valid ways to comment code:

//hello

//world

/*hello

world*/

• True

• False