currency-in-words/dist/index.js

A light-weight, fast and efficient lib that converts currency or any numbers to corresponding words

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.convert = void 0;
var utils_1 = require("./utils");
var globalConfig_1 = require("./lib/globalConfig");
/**
 * @TODO Fix: converted and translated(literally) are used interchangabily.
 */
/**
 *
 * @param value value to be converted, this can typically contain integer and fractional part, eg: 99.99
 * @param param1 <object> { format: string, lang: string }
 * @returns NaN for invalid input
 * @returns translated value
 *
 * @throws rangeException
 */
function convert(value, _a) {
    var _b = _a === void 0 ? { format: (0, globalConfig_1.getGlobalConfig)().format, lang: (0, globalConfig_1.getGlobalConfig)().lang } : _a, format = _b.format, lang = _b.lang;
    /** Update the globalConfig */
    (0, globalConfig_1.setGlobalConfig)({ lang: lang, format: format });
    /**
     * Safe guard against invalid inputs
     * this rejects strings if contained invalid input
     *
     * reject invalid strings; returns 'NaN'
     */
    if (!value || !value.match(/^\d*(\.\d+)?$/))
        return 'NaN';
    /**
     * Integer and fraction parts are processed seperately, though the same logic is reused
     *
     * zeroCorrected: this is to sanitize all the preceding zeores
     * eg: 001 to 1, 099 to 99
     *
     * twoDecimalPlaces: the factional part is corrected to two decimal places and anything lesser than .10 is rejected
     * eg:  .18 to .18
     *      .09 to ''
     */
    var _c = value.split('.'), integer = _c[0], fraction = _c[1];
    var zeroCorrected = "".concat(parseInt(integer, 10));
    var twoDecimalPlaces = parseInt(fraction, 10) >= 10 ? "".concat(fraction.substring(0, 2)) : "";
    /**
     * This handles place values upto 15 for both indian and international systems, and anything beyond that is thrown with a range error
     */
    if (zeroCorrected.length > 15)
        throw new RangeError('Number exceeds the range');
    /**
     * Handles when passed in just fractional parts
     * eg:  0.99, 0.77 etc
     *
     * If the sanitized input is still 0, returns 'zero'
     * eg: '00', '000'
     */
    if (parseInt(fraction, 10) >= 10 && zeroCorrected === '0')
        return "zero.".concat((0, utils_1.handleTens)(twoDecimalPlaces));
    if (zeroCorrected === '0')
        return 'zero';
    // International format
    if (format === 'intl')
        return (0, utils_1.convertIntl)(zeroCorrected, fraction, twoDecimalPlaces);
    //  Indian format
    return (0, utils_1.convertInd)(zeroCorrected, fraction, twoDecimalPlaces);
}
exports.convert = convert;
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