How to use Switch Statement In Javascript
In this approach, we are using a switch statement to check a number’s sign (positive, negative, or zero) based on Math.sign() method, this method is used to know the sign of a number, indicating whether the number specified is negative or positive.
Syntax:
switch (expression) {
case value1:
statement1;
break;
case value2:
statement2;
break;
. . .
case valueN:
statementN;
break;
default:
statementDefault;
}
Example: In this example, we are using the above-explained approach
function numberChecking(num) {
switch (Math.sign(num)) {
case 1:
console.log("The number is Positive");
break;
case -1:
console.log("The number is Negative");
break;
default:
console.log("The number is Zero");
}
}
numberChecking(12);
// Output: Positive
numberChecking(-1);
// Output: Negative
numberChecking(0);
// Output: Zero
Output
The number is Positive The number is Negative The number is Zero
JavaScript Program to Check if a number is Positive, Negative, or Zero
In this article, we are going to learn if a number is positive, negative, or zero, for numerous mathematical operations and conditional statements in JavaScript. It is critical to know if a given number is positive, negative, or zero. This article provides a straightforward approach in JavaScript that lets you determine whether a given number belongs to one of these groups.
Several methods can be used to Check if a number is Positive, Negative, or Zero.
We will explore all the above methods along with their basic implementation with the help of examples.
Table of Content
- Using Switch Statement
- Using if-else Statements
- Using Ternary Operator
- Using Math.abs()