Javascript Program to Check if a number is Positive, Negative, or Zero

You will be using the if...else if...else statement to write the program.

Example 1: Check Number Type with if...else if...else

Output

Enter a number: 0
The number is zero.

The above program checks if the number entered by the user is positive, negative or zero.

• The condition number > 0 checks if the number is positive.
• The condition number == 0 checks if the number is zero.
• The condition number < 0 checks if the number is negative.

The above program can also be written using the nested if...else statement.

Example 2: Check Number Type with nested if...else

Output

Enter a number: 0
You entered number zero

The above program works the same as Example 1. However, the second example uses the nested if...else statement.