When working with dates in JavaScript, it’s often useful to determine which quarter a particular month falls into. Knowing the quarter can aid in various date-related calculations or visual representations. In this article, we will explore different approaches to check the month and it’s quarter using JavaScript.

These are the following approaches:

Using Math operations

In this approach, we divide the month number by 3 and use the Math.ceil() function to round up to the nearest integer. This effectively groups the months into quarters.

Example: This example uses math operations to check the quarter of month.

function getQuarter(month) {
    return Math.ceil(month / 3);
}

console.log(getQuarter(5));

2

Using a switch statement

In this approach, we use a switch statement to handle each quarter based on the result of dividing the month number by 3. Each case corresponds to a quarter and we return the appropriate quarter based on the input month.

Example: This example uses switch statement to check the quarter of month.

function getQuarter(month) {
    switch (Math.ceil(month / 3)) {
        case 1:
            return "First Quarter";
        case 2:
            return "Second Quarter";
        case 3:
            return "Third Quarter";
        case 4:
            return "Fourth Quarter";
        default:
            return "Invalid month";
    }
}

console.log(getQuarter(9)); 

Third Quarter