how to use the subseconds function from date-fns in javascript

The subseconds function in the date-fns library allows you to extract the sub-seconds part of a given time value as a decimal number representing the milliseconds part.

Here's an example code snippet showing how to use the subseconds function to extract the sub-seconds from a given time value:

index.tsx
const { subseconds } = require('date-fns');

const timeValue = new Date('2022-01-01T00:00:00.123456Z');
const subsecondsValue = subseconds(timeValue); // Returns 0.123456
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In this example, we're importing the subseconds function from the date-fns library using the require statement. Then, we're creating a timeValue variable representing a specific date and time with a precision up to microseconds.

Next, we're calling the subseconds function with the timeValue variable as a parameter. This function extracts the sub-seconds part of the time value and returns it as a decimal number representing the milliseconds part of the time value.

Finally, we're storing the result in the subsecondsValue variable, which will contain the value 0.123456 in this example, which represents the 123,456 microsecond sub-seconds of the given timeValue.