Built in math functions JS

What is the purpose of an if statement in JavaScript?

• To repeat a block of code

• To check if a condition is true and execute a block of code if it is

• To declare a new variable

• To comment out a line of code

Which of the following is the correct syntax for an if statement in JavaScript?

• if (condition)

• if (condition) ... else ...

• if { ... } else { ... }

• if (condition)

Which of the following can be used as a condition in an if statement?

• A Boolean expression (true/false)

• A string

• A number

• A function

• Math.min(x, y, ...)

• Math.max(x, y, ...)

• Math.random()

• Math.pow(x, y)

Function returns the absolute value of a number.

• Math.abs(x)

• Math.sqrt(x)

• Math.ceil(x)

• Math.round(x)

Function returns the square root of a number.

• Math.abs(x)

• Math.sqrt(x)

• Math.ceil(x)

• Math.round(x)

Function rounds a number to the nearest integer. (0.6 → 1) (0.2→0)

• Math.abs(x)

• Math.sqrt(x)

• Math.ceil(x)

• Math.round(x)

Function rounds a number up to the next integer.(0.2 → 1)

• Math.abs(x)

• Math.sqrt(x)

• Math.ceil(x)

• Math.round(x)

Function rounds a number down to the nearest integer. (0.6 → 0)

• Math.abs(x)

• Math.floor(x)

• Math.ceil(x)

• Math.round(x)