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i18n-node-2 JSON

What is i18n-node-2 and how does it work for localization and internationalization?

File Extensions .js
API Extension node_json
Import Yes
Export Yes
Pluralization supported? Yes
Descriptions supported? No

I18n-node-2 is a library based on Node.js that can work out of the box with Express.js. I18n-node-2 integrates seamlessly with your application by providing an on-the-fly way of string extraction. In other words, using i18n-node-2, all you need to do is to wrap strings pending translation with the default _(“…”) method. While running, i18n-node-2 will automatically generate multiple JSON files depending on your predefined locales. 

I18n-node-2 uses the auto-generated JSON format to store translatable data. Therefore, prior to translation, it is best to have a sanity check of the files. Since i18n-node-2 supports pluralization, you also need to make sure that all variables remain unchanged during translation. 

Code Sample

  "boolean_key": "--- true\n",
  "empty_string_translation": "",
  "key_with_description": "Check it out! This key has a description! (At least in some formats)",
  "key_with_line-break": "This translations contains\na line-break.",
  "nested.deeply.key": "I'm a deeply nested key.",
  "nested.key": "This key is nested inside a namespace.",
  "null_translation": null,
  "pluralized_key": {
    "one": "Only one pluralization found.",
    "other": "Wow, you have %s pluralizations!",
    "zero": "You have no pluralization."
  "sample_collection": [
    "first item",
    "second item",
    "third item"
  "simple_key": "simple key, simple message, so simple.",
  "unverified_key": "This translation is not yet verified and waits for it. (In some formats we also export this status)"

More Information 

i18n-node-2 library is one of the most popular libraries to localize node applications.