calc-baseline-years

What is this module?

This module provides a few simple functions for obtaining minimum browser version numbers and release dates for each version of the Web Platform Baseline.

Functions

There are three functions available in this module.

1. getAllMinBaselineVersions(?year)
2. getMinBaselineVersionsByYear(year)
3. getMinBaseilneVersionByBrowserAndYear(browser, year)

getAllMinBaselineVersions()

Returns a Javascript Object with the following format representing Baseline minimum browser versions for the year in question:

{
  "2016": {
    "chrome": {
      "version": "47",
      "release_date": "2015-12-01"
    },
    "chrome_android": {
      "version": "47",
      "release_date": "2015-12-02"
    },
    "edge": {
      "version": "13",
      "release_date": "2015-11-12"
    },
    "firefox": {
      "version": "43",
      "release_date": "2015-12-15"
    },
    "firefox_android": {
      "version": "43",
      "release_date": "2015-12-15"
    },
    "safari": {
      "version": "9",
      "release_date": "2015-09-30"
    },
    "safari_ios": {
      "version": "9",
      "release_date": "2015-09-16"
    }
  },
  ...
}

This function takes a single argument, year, which is an int or string in the format YYYY. If you pass a number lower than 2004, the script will throw an error, as none of the Baseline browser set existed before 2003.

getMinBaselineVersionsByYear(year)

This function takes ones argument, year.

• browser should be a string from the following list:
  • chrome
  • chrome_android
  • edge
  • firefox
  • firefox_android
  • safari
  • safari_ios
• year should be a four digit representation of a year between 2016 and the current year.

The function will return the object corresponding to the selected year in the same format as getAllBaselineVersions().

getMinBaselineVersionByBrowserAndYear(browser, year)

This function takes two arguments: browser and year.

This function returns an object containing the version and release_date objects for the requested browser and year.