n2words
Version:
Convert numbers to words in 70+ languages with zero dependencies. Supports BigInt, decimals, and browser/Node.js environments.
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TypeScript
/**
* Irish English language converter
*
* CLDR: en-IE | English as used in Ireland
*
* Exports:
* - toCardinal(value) - Cardinal numbers: 42 → "forty-two"
* - toOrdinal(value) - Ordinal numbers: 42 → "forty-second"
* - toCurrency(value, options?) - Currency: 42.50 → "forty-two euro and fifty cent"
*
* Irish English conventions:
* - Follows British English style
* - "and" after hundreds: "one hundred and twenty-three"
* - "and" before final segment: "one million and one"
* - Hyphenated tens-ones: "twenty-one", "forty-two"
* - Western numbering system (short scale: billion = 10^9)
* - Currency: Euro (EUR) - euro (singular/plural), cent/cents
*
* Note: In Irish English, "euro" is typically invariable (same for singular and plural),
* though "euros" is also accepted. This implementation uses "euro" for both.
*/
export declare const cardinalMax: bigint;
export declare const ordinalMax: bigint;
export declare const currencyMax: bigint;
/**
* Converts a numeric value to Irish English words.
*
* This is the main public API. It accepts any valid numeric input
* (number, string, or bigint) and handles parsing internally.
* @param {number | string | bigint} value - The numeric value to convert
* @returns {string} The number in English words
* @throws {TypeError} If value is not a valid numeric type
* @throws {Error} If value is not a valid number format
* @example
* toCardinal(42) // 'forty-two'
* toCardinal(-3.14) // 'minus three point fourteen'
* toCardinal('1000000') // 'one million'
*/
declare function toCardinal(value: number | string | bigint): string;
/**
* Converts a numeric value to Irish English ordinal words.
* @param {number | string | bigint} value - The numeric value to convert (must be a positive integer)
* @returns {string} The number as ordinal words (e.g., "first", "forty-second")
* @throws {TypeError} If value is not a valid numeric type
* @throws {RangeError} If value is negative, zero, or has a decimal part
* @example
* toOrdinal(1) // 'first'
* toOrdinal(2) // 'second'
* toOrdinal(3) // 'third'
* toOrdinal(21) // 'twenty-first'
* toOrdinal(42) // 'forty-second'
* toOrdinal(100) // 'one hundredth'
* toOrdinal(101) // 'one hundred first'
* toOrdinal(1000) // 'one thousandth'
*/
declare function toOrdinal(value: number | string | bigint): string;
export type CurrencyOptions = {
/**
* - Use "and" between euro and cent (e.g., "one euro and fifty cents")
*/
and?: boolean;
};
/**
* @typedef {object} CurrencyOptions
* @property {boolean} [and] - Use "and" between euro and cent (e.g., "one euro and fifty cents")
*/
/** @type {Required<CurrencyOptions>} */
export declare const currencyDefaults: Required<CurrencyOptions>;
/**
* Converts a numeric value to Irish English currency words.
* @param {number | string | bigint} value - The currency amount to convert
* @param {CurrencyOptions} [options] - Optional configuration
* @returns {string} The amount in Irish English currency words
* @throws {TypeError} If value is not a valid numeric type
* @throws {Error} If value is not a valid number format
* @example
* toCurrency(42.50) // 'forty-two euro and fifty cents'
* toCurrency(1) // 'one euro'
* toCurrency(0.99) // 'ninety-nine cents'
* toCurrency(0.01) // 'one cent'
* toCurrency(42.50, { and: false }) // 'forty-two euro fifty cents'
*/
declare function toCurrency(value: number | string | bigint, options?: CurrencyOptions): string;
export { toCardinal, toOrdinal, toCurrency };