What Is Default Format for Year Data Type?

In JavaScript, the year data type is used to represent a specific year. The default format for the year data type is a four-digit number, such as 2021. This data type is commonly used in date and time calculations, allowing developers to work with specific years in their programs.

Default Format

The default format for the year data type is a simple four-digit number. This format allows for easy manipulation and comparison of different years within JavaScript code.

Example:

Let’s take a look at an example to better understand the default format for the year data type:

• Create a variable called currentYear and assign it the current year using the Date() constructor:

<script>
const currentYear = new Date().getFullYear();
</script>

• We can now use this variable to perform various operations on the current year:

<script>
// Display the current year
console.log(currentYear); // Output: 2021

// Compare with another year
const TargetYear = 2025;
if (currentYear === TargetYear) {
  console.log("The Target year is the same as the current year. ");
} else if (currentYear > TargetYear) {
  console.log("The Target year is in the past. 

");
} else {
  console.log("The Target year is in the future. ");
}
</script>