javascript-if

Question 1

Give 6 examples of comparison operators.

Answer 1

== , ===, < , > , !=. !==

Question 2

What data type do comparison expressions evaluate to?

Answer 2

boolean

Question 3

What is the purpose of an if statement?

Answer 3

to compare an expression. Based on the result of that comparison the code will execute one or more statements else the code does something different or just skips the step.

Question 4

Is else required in order to use an if statement?

Answer 4

no

Question 5

Describe the syntax (structure) of an if statement.

Answer 5

keyword ‘if’ followed by the condition in paranthesis folowed by an opening curly brace then the code to execute if value is true and a closing curly brace.

if ( {condition} ) {
//Code to be executed if true
}

Question 6

What are the three logical operators?

Answer 6

‘&&’ - Logical And - ‘||’ Logical Or - ‘!’ Logical Not

Question 7

How do you compare two different expressions in the same condition?

Answer 7

by using a logical operator between them or an else if statement