d3-time-format 4.1.0

The "d3-time-format" is a JavaScript module that offers a comprehensive implementation of the renowned strptime and strftime functions from the C standard library. It allows you to parse and format dates in a multitude of locale-specific representations. This can be useful for converting dates to human-readable strings or vice versa. The module is frequently used by D3 time scales to create user-friendly time-axis ticks for charts.

As a JavaScript module, incorporating d3-time-format into your project involves installing it via npm, importing it, and then calling its functions as required. For example, to format the current date into a human-readable string, use the d3.timeFormat function:

const formatTime = d3.timeFormat("%B %d, %Y");
formatTime(new Date); // "June 30, 2015"

And to convert a string back to a date, you use the d3.timeParse function:

const parseTime = d3.timeParse("%B %d, %Y");
parseTime("June 30, 2015"); // Tue Jun 30 2015 00:00:00 GMT-0700 (PDT)

You can quite seamlessly create more complex conditional time formats by using d3-time:

const formatMillisecond = d3.timeFormat(".%L"),
    formatSecond = d3.timeFormat(":%S"),
    // more formatters...
    formatYear = d3.timeFormat("%Y");

function multiFormat(date) {
  return (/* function logic...*/)(date);
}

Installing d3-time-format is as simple as running npm install d3-time-format in your project's directory.

The documentation for d3-time-format is available in its README file on the package's GitHub repository. The readme provides a comprehensive overview of the module, installation instructions, usage examples, and an API reference detailing each of the module's functions and how to use them. Both new and experienced users will find this information valuable for understanding how to use the module effectively. Any future updates or improvements to d3-time-format will likely be reflected in this documentation.