A simple translation module with dynamic json storage which helps to format strings quickly and easily. It works with template litterals strings.

Formatter can be extended with your own formatters.

It can be used in any JavaScript application (web, worker, NodeJS, ...).

You can play with the API at: https://restimel.github.io/i18n-js-formatter/demo/index.html

i18n-js-formatter's mission is to provide to the end-user the best output (translated, formatted, secured) in an easy way to build it with JavaScript.

Watch following links for more information:

• Download and Installation
• i18n API
• Configuration
• Errors management
• Dictionary and Data format
• Formatter API

configuration:

i18n.configuration({
	locales: ['en', 'fr', 'de'],
	dictionary: 'dictionary.json'
});

Changing locale:

i18n.setLocale('fr');

Using strings which have to be translated

i18n('hello'); //returns 'salut'
i18n('Hello %s!', 'Jim'); //returns 'Salut Jim!'
i18n`Hello ${'Kate'}%s!`; //returns 'Salut Kate!'

Format number depending on locale

i18n('%f sentences', 1234567.8);
	//returns '1,234,567.8 sentences' (en)
	//returns '1 234 567,8 phrases' (fr)
	//returns '1.234.567,8 Sätze' (de)

Contextualize your sentence to make difference from same sentence or to give more context.

i18n.context('computer key', 'Give the correct key'); // should be translated in French 'Donnez la bonne touche'
i18n.context('door key', 'Give the correct key'); // should be translated in French 'Donnez la bonne clef'

i18n.context('time unit: minute', 'min');
i18n.context('abbreviation: minimum', 'min');

To give plural translations (this should be done in version 0.5)

i18n.n('a cat', '%s cats', 1); // in German: 'eine Katze'
i18n.n('a cat', '%s cats', 3); // in German: '3 Katzen'

To escape string easily depending on context (mainly to avoid user entries to create unexpected issues)

i18n('quotes: %{esc:html}s', 'I <b>cannot</b> hack your site');
	// in English: 'quotes: I &lt;b&gt;cannot&lt;/b&gt; hack your site'
i18n('http://my_site.com/?search=%{esc:uric}s&limit=10', 'foo bar&baz=42');
	// returns 'http://my_site.com/?search=foo%20bar%26baz%3D42&limit=10'

You can create your own formatting rules.

i18n.addRule('*', function(data) {
	return data.value.replace(/./g, '*');
});
i18n.addRule('l', function(data) {
	return data.value.length;
});

i18n('password is %* (length: %(1)l)', 'secret'); // in French: 'le mot de passe est ****** (longueur: 6)'

In order to parse all your strings from your code and translate them easily, you can use i18n-js-parser.

Creative Commons Attribution 3.0 Unported License: You are free to use, share, modify it while you keep credit to author and contributors (http://creativecommons.org/licenses/by/3.0/)

Get the minified version of

the i18n API

the full API (i18n API + formatter)

Get source files:

i18n library

sprintf wrapper (to load it as formatter) note: you must also load sprintf

inner formatter (the one described below)

You don't need both sprintf wrapper and the inner formatter. Only one is enough ;)

Jasmine tests are provided in folder spec. Run tests with mainTest.html (located in the root folder) to assert it works well: https://restimel.github.io/i18n-js-formatter/mainTest.html

Please note that some tests may fail depending of browsers. Mainly depending of support of locale string conversion (uppercase, lowercase) where some locale were not fully supported.

If you want you can help me to improve it. Fork the project and pull request your change.

Keep tune for further update I am working on it.