Plurals

Plurals
Plural can be combined with interpolation, context, ...
Note: The variable name must be count.
Singular / Plural
keys
{
  "key": "item",
  "key_plural": "items",
  "keyWithCount": "{{count}} item",
  "keyWithCount_plural": "{{count}} items"
}
sample
i18next.t('key', {count: 0}); // -> "items"
i18next.t('key', {count: 1}); // -> "item"
i18next.t('key', {count: 5}); // -> "items"
i18next.t('key', {count: 100}); // -> "items"
i18next.t('keyWithCount', {count: 0}); // -> "0 items"
i18next.t('keyWithCount', {count: 1}); // -> "1 item"
i18next.t('keyWithCount', {count: 5}); // -> "5 items"
i18next.t('keyWithCount', {count: 100}); // -> "100 items"
Languages with multiple plurals
Sample uses arabic which has 5 plural forms beside the singular.
keys
{
  "key_0": "zero",
  "key_1": "singular",
  "key_2": "two",
  "key_3": "few",
  "key_4": "many",
  "key_5": "other"
}
sample
i18next.t('key', {count: 0}); // -> "zero"
i18next.t('key', {count: 1}); // -> "singular"
i18next.t('key', {count: 2}); // -> "two"
i18next.t('key', {count: 3}); // -> "few"
i18next.t('key', {count: 4}); // -> "few"
i18next.t('key', {count: 5}); // -> "few"
i18next.t('key', {count: 11}); // -> "many"
i18next.t('key', {count: 99}); // -> "many"
i18next.t('key', {count: 100}); // -> "other"
How to find the correct plural suffix?
You can use this small utility to get the correct plural suffixes.
​source code​
Interval plurals
Want to define phrases expressing the number of items lies in a range. Like a few items or a lot of items.
You will need to add a post processor: i18next-intervalplural-postprocessor​
import i18next from 'i18next';
import intervalPlural from 'i18next-intervalplural-postprocessor';
​
i18next
  .use(intervalPlural)
  .init(i18nextOptions);
keys
{
  "key1": "{{count}} item",
  "key1_plural": "{{count}} items",
  "key1_interval": "(1){one item};(2-7){a few items};(7-inf){a lot of items};",
  "key2": "{{count}} item",
  "key2_plural": "{{count}} items",
  "key2_interval": "(1){one item};(2-7){a few items};"
}
sample
i18next.t('key1_interval', {postProcess: 'interval', count: 1}); // -> "one item"
i18next.t('key1_interval', {postProcess: 'interval', count: 4}); // -> "a few items"
i18next.t('key1_interval', {postProcess: 'interval', count: 100}); // -> "a lot of items"
​
// not matching into a range it will fallback to
// the regular plural form
i18next.t('key2_interval', {postProcess: 'interval', count: 1}); // -> "one item"
i18next.t('key2_interval', {postProcess: 'interval', count: 4}); // -> "a few items"
i18next.t('key2_interval', {postProcess: 'interval', count: 100}); // -> "100 items"
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