@procore/globalization-toolkit
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3.1.0 • Public • Published

globalization-toolkit

i18n formatting library

Maintainer CircleCI NPM

Before implementing the Globalization Toolkit (GTK), please review the Globalization Toolkit Adoption Diagram to determine the best implementation strategy for you. Continue reading for instructions on direct usage of the GTK.

The engineering documentation contains technical documentation for the GTK repo. It details classes, types, interfaces, and features. Continue reading for install and usage instructions. Further reading on the GTK:

Install

NPM

$ npm i --save @procore/globalization-toolkit

YARN

$ yarn add @procore/globalization-toolkit

Usage

The GTK has 3 available classes: NumberFormatter, DateTimeFormatter, CurrencyFormatter. The structure of the GTK Library allows for instantiation of a formatting class with defined options. The instantiated class gives access to related functions. In addition, the GTK makes the class functions available as stand-alone functions. Below are examples of GTK usage with class formatter and with stand-alone functions.

A Note on Locales

The GTK supports industry standard locale codes. The GTK does NOT support Procore Custom Locales. When implementing the GTK, please sanitize the locale to follow industry standard of 'region-language' like 'en-US'.

NumberFormatter Class

The GTK NumberFormatter class has the ability to format numbers for a given locale. The NumberFormatter class is instantiated with NumberOptions and has 4 available functions:

  • formatNumber(value: number),
  • formatNumberToParts(value: number),
  • parseNumber(value: string), and
  • getNumberSeparators(locale: string).

The NumberOptions are summarized below:

  • locale: string
  • maximumFractionDigits?: number
  • minimumFractionDigits?: number
  • percent?: 'standard', 'decimal'

Below code blocks display usage of the NumberFormatter class and available functions.

import { NumberFormatter } from '@procore/globalization-toolkit';

const value = 1234;
const numberOptions = { locale: "en-US", minimumFractionDigits: 3 };
const formatter = new NumberFormatter(numberOptions);

console.log(formatter.formatNumber(value)) // expected output: '1,234.000'

console.log(formatter.formatNumberToParts(value))
    /**
     *  expected output is an array of objects representing the parts of the formatted number:
     * [
     *  { type: "integer",   value: "1",    },
     *  { type: "group",     value: ",",    },
     *  { type: "integer",   value: "234",  },
     *  { type: "decimal",   value: ".",    },
     *  { type: "fraction",  value: "000",  },
     * ];
    */
import { NumberFormatter } from '@procore/globalization-toolkit';

const value = "123 456 789,12";
const numberOptions = { locale: "fr-FR" };
const formatter = new NumberFormatter(numberOptions);

console.log(formatter.parseNumber(value)); // expected output: '123456789.12'

console.log(formatter.parseNumber("Abcd")); // expected output: NaN
import { NumberFormatter } from '@procore/globalization-toolkit';

const germanNumberOptions = { locale: "de-DE" };
const germanFormatter = new NumberFormatter(germanNumberOptions);

console.log(germanFormatter.getSeparators()); // expected output: { decimal: ",", group: "." }

const usNumberOptions = { locale: 'en-US' };
const formatter = new NumberFormatter(usNumberOptions);

console.log(formatter.getSeparators()); // expected output: { decimal: ".", group: "," }

NumberFormatter Functions

The functions used on the NumberFormatter class are also available as stand alone functions. Read more information about each function in the GTK Documentation.

The example below shows usage of the stand alone function: formatNumber().

import { formatNumber } from '@procore/globalization-toolkit';

const value = 1234;
const numberOptions = { locale: "en-US", minimumFractionDigits: 3 };

console.log(formatNumber(value, numberOptions)) // expected output: '1,234.000'

CurrencyFormatter class

The GTK CurrencyFormatter class has the ability to format a number with given options. The CurrencyFormatter class is instantiated with CurrencyOptions.
The CurrencyFormatter has 5 available functions:

  • formatCurrency(value: number),
  • formatCurrencyToParts(value: number)
  • parseCurrency(value: string)
  • getCurrencySeparators()
  • getSupportedCurrencies()

The CurrencyOptions are summarized below:

  • currencyIsoCode: string (acceptable ISO codes)
  • locale: string
  • currencySign?: 'accounting', 'standard'
  • currencyDisplay?: 'code', 'name', 'narrowSymbol', 'symbol'
  • maximumFractionDigits?: number
  • minimumFractionDigits?: number

Below code blocks display usage of the CurrencyFormatter class and available functions.

formatCurrency(value: number)

const value = 1234;
const currencyOptions = { locale: "en-US", currencyIsoCode: "USD" };
const formatter = new CurrencyFormatter(currencyOptions);
 
console.log(formatter.formatCurrency(value)) // expected outcome: '$1,234.00'

Usage with currencyDisplay option

import { CurrencyFormatter } from '@procore/globalization-toolkit';

const value = 1234.567;
const currencyOptions: CurrencyOptions = {
    locale: "de-DE",
    currencyIsoCode: "USD",
    currencyDisplay: "name",
    };
const formatter = new CurrencyFormatter(currencyOptions);

console.log(formatter.formatCurrency(value)); // expected outcome: '1.234,57 US-Dollar'

Usage with minimumFractionDigits and currencyDisplay

const value = 1234.567;
const currencyOptions = {
    locale: "ja-JP",
    minimumFractionDigits: 2,
    currencyIsoCode: "JPY",
};
const formatter = new CurrencyFormatter(currencyOptions);

console.log(formatter.formatCurrency(value)); // expected outcome: '¥1,234.57'

formatCurrencyToParts()

import { CurrencyFormatter } from '@procore/globalization-toolkit';

const value = -1234.56;
const currencyOptions: CurrencyOptions = {
    locale: "en-US",
    currencyIsoCode: "CAD",
    currencySign: "accounting",
};
const formatter = new CurrencyFormatter(currencyOptions);
console.log(formatter.formatCurrencyToParts(value));
    /** expected output:
     * [
     *   { type: "literal", value: "(", },
     *   { type: "currency", value: "CA$", },
     *   { type: "integer", value: "1", },
     *   { type: "group", value: ",", },
     *   { type: "integer", value: "234", },
     *   { type: "decimal", value: ".", },
     *   { type: "fraction", value: "56", },
     *   { type: "literal", value: ")", },
     * ]
     **/

parseCurrency(value: string)

const value = "(1 234 567,56 €)";
const currencyOptions: CurrencyOptions = {
    locale: "fr-FR",
    currencyIsoCode: "EUR",
    currencySign: "accounting",
};
const formatter = new CurrencyFormatter(currencyOptions);

console.log(formatter.parseCurrency(value)); // expected outcome: -1234567.56

getCurrencySeparators

const currencyOptions = { locale: "de-DE", currencyIsoCode: "EUR" };
const formatter = new CurrencyFormatter(currencyOptions);

console.log(formatter.getCurrencySeparators()) // expected outcome: { decimal: ",", group: "." }

getSupportedCurrencies

const currencyOptions = { locale: "es-MX", currencyIsoCode: MXN" }
const formatter = new CurrencyFormatter(currencyOption)

console.log(formatter.getSupportedCurrencies())
    /** expected outcome
     * [
     *   "AED",
     *   "AFN",
     *   "ALL",
     *   ...
     *   ...
     *   "ZWL"  
     * ]
    */

CurrencyFormatter Functions

The functions used on the CurrencyFormatter class are also available as stand alone functions. Read more information about each function in the GTK Documentation.

The example below shows usage of the stand alone function: formatCurrency(value, options).

import { formatCurrency, getCurrencySeparators } from '@procore/globalization-toolkit';

const value = 1234;
const currencyOptions = { locale: 'en-US', currencyIsoCode: 'USD' };

console.log(formatCurrency(value, currencyOptions)) // expected output: '$1,234.00'

console.log(getCurrencySeparators(currencyOptions)) // expected output: { decimal: ".", group: "," }

DateTimeFormatter

The GTK DateTimeFormatter class has the ability to format date and time for the correct timezone. The DateTimeFormatter class is instantiated with DateTimeOptions.
The DateTimeFormatter has 3 available functions:

  • formatDateTime(value: Date),
  • formatDateTimeToParts(value: Date), and
  • getStartDayOfTheWeek()

The DateTimeOptions can be used in two ways, but the two options cannot be combined. This follows the pattern of Intl.DateTimeFormat.

  1. Style Options:
    • timeStyle: 'short', 'medium', 'long', 'full'
    • dateStyle: 'short', 'medium', 'long', 'full'
  2. Component Options
    • weekday: 'long', 'short', 'narrow'
    • year: 'numeric', '2-digit'
    • month: numeric', '2-digit', 'long', 'short', 'narrow'
    • day: 'numeric', '2-digit'
    • hour: 'numeric', '2-digit'
    • minute: 'numeric', '2-digit'
    • second: 'numeric', '2-digit'

Below code blocks display usage of the DateTimeFormatter class and available functions.
formatDateTime(value: Date)
SIMPLE OPTIONS

import { DateTimeFormatter } from '@procore/globalization-toolkit';

const value = new Date(1445419756738);
const dateTimeOptions = {
    locale: 'en-US',
    timeZone: 'UTC',
    dateStyle: 'full',
    timeStyle: 'long',
};
const formatter = new DateTimeFormatter(dateTimeOptions);

console.log(formatter.formatDateTime(value))
// expected output: Wednesday, October 21, 2015 at 9:29:16 AM UTC

COMPLEX OPTIONS

const value = new Date(Date.UTC(1885, 8, 1, 12, 0, 16, 738));
const dateTimeOptions = {
    locale: 'en-US',
    timeZone: 'UTC',
    weekday: 'long',
    year: 'numeric',
    month: '2-digit',
    day: '2-digit',
    hour: 'numeric',
    minute: '2-digit',
    second: '2-digit',
};
const formatter = new DateTimeFormatter(dateTimeOptions);

console.log(formatter.formatDateTime(value))
// expected output: "Tuesday, 09/01/1885, 12:00:16 PM";

formatDateTimeToParts(value: Date)

const value = new Date(Date.UTC(1955, 10, 5, 6, 0, 16, 738));
const dateTimeOptions = {
    locale: "en-GB",
    timeZone: "UTC",
    dateStyle: DateStyle.FULL,
    timeStyle: TimeStyle.SHORT,
};
const formatter = new DateTimeFormatter(dateTimeOptions);

console.log(formatter.formatDateTime(value))
    /**   expected output: 
     *   [ { type: "weekday", value: "Saturday", },
     *     { type: "literal", value: ", ", },
     *     { type: "day", value: "5", },
     *     { type: "literal", value: " ", },
     *     { type: "month", value: "November", },
     *     { type: "literal", value: " ", },
     *     { type: "year", value: "1955", },
     *     { type: "literal", value: " at ",},
     *     { type: "hour", value: "06",},
     *     { type: "literal", value: ":",},
     *     { type: "minute", value: "00",}, ];
     **/

[formatDateTimeToLocalISOString(value: Date)] This function returns a local ISO 8601 string. This method was designed only for internal purposes. Must not be used to display dates in the Procore UI.

const value = new Date(Date.UTC(1955, 10, 5, 6, 0, 16, 738));
const dateTimeOptions = {
    locale: "en-GB",
    timeZone: "UTC",
    dateStyle: DateStyle.FULL,
    timeStyle: TimeStyle.SHORT,
};
const formatter = new DateTimeFormatter(dateTimeOptions);

console.log(formatter.formatDateTimeToLocalISOString(value))
// expected output: "1955-11-05";

getStartDayOfTheWeek()
This function returns an index value representing the start day of the week on the locale's calendar { Sunday: 0, Monday: 1 ...etc }

const dateTimeOptions = { locale: 'en-US' };
const formatter = new DateTimeFormatter(dateTimeOptions);

console.log(formatter.startDayOfTheWeek()); // expected output: 0

DateTimeFormatter Functions

The functions used on the DateTimeFormatter class are also available as stand alone functions. Read more information about each function in the GTK Documentation.

The example below shows usage of the stand alone function: formatDateTime().

import { formatDateTime } from '@procore/globalization-toolkit';

const value = new Date(Date.UTC(1955, 10, 5, 6, 0, 16, 738));
const dateTimeOptions = { locale: "en-US", timeZone: "UTC" };

console.log(formatDateTime(value, dateTimeOptions)) // expected output: 11/5/1955

Polyfills

The GTK implementation relies heavily on Intl functionality. This is generally well-supported by browsers, but depending on the browser versions you intend to support and GTK features you plan to use, it may require polyfills. In particular, consumers have seen issues with Safari versions <14.1. If you intend to support older browser versions, we recommend using the Format.JS polyfills, of which NumberFormat, PluralRules, Locale, GetCanonicalLocales, and supportedValuesOf are the ones relevant to GTK. Please reach out if you have questions.


Developing

Install dependencies:

$ npm install

Prepare project:

$ npm run prepare

Compile Typescript:

$ npm run build

(Delete build npm run clean)

Testing

$ npm run test

If adding a new supported export (or removing one in a breaking change), update the snapshot test output and commit the change.

$ npm run test -- -u

To check formatting run npm run lint:check and npm run format:check.

To check dependencies run

$ npm run depcheck

Documentation

We auto-generate documentation on what the Globalization Toolkit offers by utilizing Typedoc. Once you generate the updated documentation, you can navigate it locally by opening 'docs/index.html'.

To generate updated documentation run:

$ npm run typedoc

Versioning and Publishing

We use changesets to manage releases, and encourage you to include a changeset with each commit or pull request.

To create a changeset run npm run changeset and follow the prompt instructions.

To publish a release with changes:

  • Create new branch (e.g., git checkout -b chore/release).
  • Run npm run changeset version to create a release containing all changes. This command will update the version of GTK, as well update the CHANGELOG.md file.
  • Commit the changes (e.g., git commit -m "chore: release").
  • Create a pull request. git push -u origin HEAD, and then create pull request in the web UI.
  • Once the pull request is merged to main the updated packages will be published to npm once the CI pipeline is completed.

License

The package is available under the Procore Developers License

About Procore

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Learn more about the #1 most widely used construction management software at procore.com

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