@formatjs/intl-pluralrules
Version:
Polyfill for Intl.PluralRules
23 lines (22 loc) • 960 B
JavaScript
import { FormatNumericToString, invariant, Type, } from '@formatjs/ecma402-abstract';
import { GetOperands } from './GetOperands';
/**
* http://ecma-international.org/ecma-402/7.0/index.html#sec-resolveplural
* @param pl
* @param n
* @param PluralRuleSelect Has to pass in bc it's implementation-specific
*/
export function ResolvePlural(pl, n, _a) {
var getInternalSlots = _a.getInternalSlots, PluralRuleSelect = _a.PluralRuleSelect;
var internalSlots = getInternalSlots(pl);
invariant(Type(internalSlots) === 'Object', 'pl has to be an object');
invariant('initializedPluralRules' in internalSlots, 'pluralrules must be initialized');
if (!n.isFinite()) {
return 'other';
}
var locale = internalSlots.locale, type = internalSlots.type;
var res = FormatNumericToString(internalSlots, n);
var s = res.formattedString;
var operands = GetOperands(s);
return PluralRuleSelect(locale, type, n, operands);
}