53 lines
2 KiB
JavaScript
53 lines
2 KiB
JavaScript
import { localize } from '../localize.js';
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import { getLocale } from './getLocale.js';
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import { formatNumberToParts } from './formatNumberToParts.js';
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/** @typedef {import('../../types/LocalizeMixinTypes').NumberPostProcessor} NumberPostProcessor */
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/**
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* Formats a number based on locale and options. It uses Intl for the formatting.
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*
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* @typedef {import('../../types/LocalizeMixinTypes').FormatNumberPart} FormatNumberPart
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* @typedef {import('@lion/localize/types/LocalizeMixinTypes').FormatNumberOptions} FormatOptions
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* @param {number} number Number to be formatted
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* @param {FormatOptions} [options] Intl options are available extended by roundMode and returnIfNaN
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* @returns {string}
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*/
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export function formatNumber(number, options = /** @type {FormatOptions} */ ({})) {
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if (number === undefined || number === null) return '';
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const formattedToParts = formatNumberToParts(number, options);
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// If number is not a number
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if (
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formattedToParts === options.returnIfNaN ||
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formattedToParts === localize.formatNumberOptions.returnIfNaN
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) {
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return /** @type {string} */ (formattedToParts);
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}
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let printNumberOfParts = '';
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// update numberOfParts because there may be some parts added
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const numberOfParts = formattedToParts && formattedToParts.length;
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for (let i = 0; i < numberOfParts; i += 1) {
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const part = /** @type {FormatNumberPart} */ (formattedToParts[i]);
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printNumberOfParts += part.value;
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}
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const computedLocale = getLocale(options && options.locale);
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if (localize.formatNumberOptions.postProcessors.size > 0) {
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Array.from(localize.formatNumberOptions.postProcessors).forEach(([locale, fn]) => {
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if (locale === computedLocale) {
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printNumberOfParts = fn(printNumberOfParts);
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}
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});
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}
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if (options.postProcessors && options.postProcessors.size > 0) {
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Array.from(options.postProcessors).forEach(([locale, fn]) => {
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if (locale === computedLocale) {
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printNumberOfParts = fn(printNumberOfParts);
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}
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});
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}
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return printNumberOfParts;
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}
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