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feat(localize): add getCurrencyName

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This commit is contained in:
Thijs Louisse 2019-11-27 13:25:59 +01:00
parent 8db04b8bab
commit 708b6f991d
3 changed files with 37 additions and 0 deletions
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1
packages/localize/index.js
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@ -6,6 +6,7 @@ export { normalizeDateTime } from './src/date/normalizeDateTime.js';
export { parseDate } from './src/date/parseDate.js';
export { formatNumber } from './src/number/formatNumber.js';
export { formatNumberToParts } from './src/number/formatNumberToParts.js';
export { getCurrencyName } from './src/number/getCurrencyName.js';
export { getDecimalSeparator } from './src/number/getDecimalSeparator.js';
export { getFractionDigits } from './src/number/getFractionDigits.js';
export { getGroupSeparator } from './src/number/getGroupSeparator.js';

22
packages/localize/src/number/getCurrencyName.js Normal file
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@ -0,0 +1,22 @@
import { formatNumberToParts } from './formatNumberToParts.js';
/**
* Based on number, returns currency name like 'US dollar'
*
* @param {string} currencyIso iso code like USD
* @param {Object} options Intl options are available extended by roundMode
* @returns {string} currency name like 'US dollar'
*/
export function getCurrencyName(currencyIso, options) {
const parts = formatNumberToParts(1, {
...options,
style: 'currency',
currency: currencyIso,
currencyDisplay: 'name',
});
const currencyName = parts
.filter(p => p.type === 'currency')
.map(o => o.value)
.join(' ');
return currencyName;
}

14
packages/localize/test/number/getCurrencyName.test.js Normal file
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@ -0,0 +1,14 @@
import { expect } from '@open-wc/testing';
import { localizeTearDown } from '../../test-helpers.js';
import { getCurrencyName } from '../../src/number/getCurrencyName.js';
describe('getCurrencyName', () => {
afterEach(localizeTearDown);
it('returns the right name for currency and locale combination', async () => {
expect(getCurrencyName('USD', { locale: 'en-GB' })).to.equal('US dollars');
expect(getCurrencyName('USD', { locale: 'nl-NL' })).to.equal('Amerikaanse dollar');
expect(getCurrencyName('EUR', { locale: 'en-GB' })).to.equal('euros');
expect(getCurrencyName('EUR', { locale: 'nl-NL' })).to.equal('euro');
});
});