Check if number is zero in JavaScript
In this tutorial, you are given a number. Write a JavaScript program to check if the number is zero 0
.
Solution
A number is zero if it is equal to 0
. To check if given number is zero, we can use comparison equal-to operator to check if given number is equal to 0
.
Program
1. In the following program, we are given a number in n
. We shall check if n
is zero.
let n = 0;
if ( n == 0 ) {
console.log('zero');
} else {
console.log('not a zero');
}
We have used the condition as a boolean expression in if-else statement.
2. Now, we shall take a non-zero number in n
, and programmatically check if value in n
is zero or not.
let n = 7;
if ( n == 0 ) {
console.log('zero');
} else {
console.log('not a zero');
}