CS Do Now Quiz #5

What keyword would a person use to declare a variable in which the value stored to it is expected to not be changed or updated?

What type of variable is expressed as true/false?

• String

• Boolean

• Number

• Conditional

What operator can be used with both strings and numbers?

• "-"

• "/"

• "+"

• "*"

• 2

• 17

• 60

• 7

Which of these is NOT a valid string?

• Hello

• "work4$"

• "Hello, world!"

• "dude'

What is the difference between loose equality (==) and strict equality (===)?

What will this boolean expression resolve to? --

"23" < "123"

• true

• false

Which of these characters can be included in a string?

• Alphabetical (a-z, A-Z)

• Digits (0-9)

• Spaces

• Special Characters (!/$^*, etc.)

• all of the above

What surrounds a string?

• Quotations:

  " " or ' '

• Curly Brackets:

  { }

• Parentheses:

  ( )

• Square Brackets:

  [ ]

In this code snippet:

```

var thing;

console.log(thing);

```

What is the value of "thing"?

• null

• "thing"

• undefined

• ""