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(DEPRECATED, use npm instead) Bower module for Unicode CLDR JSON data
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DEPRECATED, use npm cldr-data package instead

Bower's cldr-data

Bower module for Unicode CLDR JSON data.


  • Allow i18n libraries to define CLDR data as versioned "peer" dependency.
  • Empower end applications the manage the final flatten CLDR data.
  • Provide tools to assist (in other words, ease the pain) on fetching and filtering the data.

Bonus goals


End applications

If you're writing an end application that depends on i18n libraries, which in turn define their CLDR data dependency using bower's cldr-data, you need to:

  1. List your i18n dependencies (obvious).
  2. Setup a bower postinstall hook to populate the correct Unicode CLDR JSON data.

On the bower.json of your application, list the i18n dependencies as you'd normally do. For example, let's say they are FooNumberFormat and BarDateFormat.

"dependencies": {
  "foo-number-format": "1.2.3",
  "bar-date-format": "4.5.6"

If you don't have a .bowerrc file then create one. On your .bowerrc file, define script hooks to actually fetch the correct Unicode CLDR JSON data for you. With this in place, when you enter bower install the lovely cldr-data will be included as part of the installation.

Important: If you have already installed your bower dependencies prior to defining your .bowerrc hook then subsequently entering bower install will not install cldr-data.

  "scripts": {
    "preinstall": "npm install cldr-data-downloader@0.2.x",
    "postinstall": "node ./node_modules/cldr-data-downloader/bin/download.js -i bower_components/cldr-data/index.json -o bower_components/cldr-data/"

Unicode CLDR JSON data will be available at bower_components/cldr-data (obviously, you can change that to your taste if you want to).

Note that if you use AMD, you can use the below in your application.

  cldrData: "./bower_components/cldr-data",
  json: "./bower_components/requirejs-plugins/src/json",
  text: "./bower_components/requirejs-text/text"

], function( enNumbers, likelySubtags, ... ) {

  // Your awesome application code goes here.


You can find more details (and give it a try) by switching to the Application Example branch.

I18n libraries

If you own or develop an i18n library, your life just got better. :p

On the bower.json of your i18n library, define its CLDR data dependency.

"dependencies": {
  "cldr-data": ">=26"

That's it. End applications will now be able to provide your library the correct version of CLDR data. For your convinience, use cldr-data in conjunction of cldr.js.

You can find more details (and give it a try) by switching to the Foo Number Format Library Example branch.

How does it work?

This bower module doesn't actually mirror any Unicode CLDR JSON data as you may have already noticed. The only piece of information we carry is its zips URLs (see index.json), which are necessary to fetch the data. In consequence, this dependency gets really light and fast to be processed by bower.

Each cldr-data-bower's major.minor version maps to a Unicode CLDR JSON with the same number. For example, cldr-data-bower 26.0.0, 26.0.1, or 26.0.1 all map to Unicode CLDR JSON v26. So, simply use major (and possibly minor, e.g., 23.1) when defining it, e.g., "cldr-data": ">=26".

What really matters is that this approach allows bower to do its job, i.e., dependency management.

Exemplifying, an end application that depends on Foo (that depends on cldr-data >= 25) and Bar (that depends on cldr-data >= 23.1), can use bower to install and to flatten its cldr-data dependency. In this case, it's any version bigger or equal to twenty five (>=25).

At this point, bower installs the right cldr-data version into ./bower_components/cldr-data, which carries instructions on how to download the CLDR JSON data.

A postinstall script, like cldr-data-downloader, must be used to actually populate the above skeleton.

On any questions or problems, please file an issue.


MIT © Rafael Xavier de Souza

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