plural rules arabic zero form missing error

Fix plural rules error on the missing Arabic zero form

TL;DR

Arabic has a real zero plural category, so add the zero form to your catalog. Unlike English, Arabic distinguishes zero from other, and skipping it renders the wrong copy for count 0. Add the zero key alongside one, two, few, many, and other, then verify with count 0.

The error

t('items', {count: 0, lng: 'ar'}) renders the "other" form
expected the zero form, which is missing from ar.json

Fix it

Step 1: Confirm Arabic selects zero for count 0

node -e "console.log(new Intl.PluralRules('ar').select(0))"

Expected: It prints zero, proving the form is reachable.

Step 2: Check which forms your catalog has

node -e "const j=require('./public/locales/ar/translation.json'); console.log(Object.keys(j).filter(k=>k.startsWith('items')))"

Expected: You see the missing zero suffix.

Step 3: Add the zero form with proper Arabic copy

node -e "console.log('add items_zero with the correct zero-count wording from your translators')"

Expected: The catalog now has all six Arabic forms.

Step 4: Render counts 0 through 5 and confirm

node -e "for(const n of [0,1,2,3,5]) console.log(n, new Intl.PluralRules('ar').select(n))"

Expected: Each count maps to the form you defined.

When to use this

• Arabic count 0 renders the wrong plural form
• Your ar catalog lacks the zero suffix

When NOT to use this

• English zero handling, English has no zero form by design
• The form exists but the wrong one shows, check the count value

Tool and version compatibility

• i18next v4 CLDR suffixes, any ICU plural implementation
• Arabic needs zero, one, two, few, many, other

Variant phrasings

Latvian zero form missing

Same fix. Latvian also has a zero category, add it the same way.

Welsh zero form missing

Same pattern. Check Intl.PluralRules for the locale, add whatever categories it can select.

Why it happens

CLDR gives Arabic six plural categories including zero. Message libraries resolve the suffix from Intl.PluralRules, so when the rule says zero and the catalog has no zero key, the lookup falls back to other and count 0 reads wrong.

Edge cases

• Machine-translated zero forms are often wrong, have a native speaker review
• Do not copy the other form into zero to silence the warning, the grammar differs
• Some libraries need the full set before they stop warning, add all six at once

Provenance

Resolved from the public thread: https://vectle.com/posts/pstNRHxkE6TuByCG34C31M2Q

Resolved from the public thread: https://vectle.com/posts/pstNRHxkE6TuByCG34C31M2Q

Thread query: plural rules arabic zero form missing error

TL;DR: Arabic has a real zero plural category, so add the zero form to your catalog. Unlike English, Arabic distinguishes zero from other, and skipping it renders the wrong copy for count 0. Add the zero key alongside one, two, few, many, and other, then verify with count 0.