Format Number

<sl-format-number> | SlFormatNumber

Since 2.0

stable

Formats a number using the specified locale and options.

Localization is handled by the browser’s Intl.NumberFormat API. No language packs are required.

<div class="format-number-overview">
  <sl-format-number value="1000"></sl-format-number>
  <br /><br />
  <sl-input type="number" value="1000" label="Number to Format" style="max-width: 180px;"></sl-input>
</div>

<script>
  const container = document.querySelector('.format-number-overview');
  const formatter = container.querySelector('sl-format-number');
  const input = container.querySelector('sl-input');

  input.addEventListener('sl-input', () => (formatter.value = input.value || 0));
</script>

import { useState } from 'react';
import SlFormatNumber from '@shoelace-style/shoelace/dist/react/format-number';
import SlInput from '@shoelace-style/shoelace/dist/react/input';

const App = () => {
  const [value, setValue] = useState(1000);

  return (
    <>
      <SlFormatNumber value={value} />
      <br />
      <br />
      <SlInput
        type="number"
        value={value}
        label="Number to Format"
        style={{ maxWidth: '180px' }}
        onSlInput={event => setValue(event.target.value)}
      />
    </>
  );
};

Examples

Percentages

To get the value as a percent, set the type attribute to percent.

<sl-format-number type="percent" value="0"></sl-format-number><br />
<sl-format-number type="percent" value="0.25"></sl-format-number><br />
<sl-format-number type="percent" value="0.50"></sl-format-number><br />
<sl-format-number type="percent" value="0.75"></sl-format-number><br />
<sl-format-number type="percent" value="1"></sl-format-number>

import SlFormatNumber from '@shoelace-style/shoelace/dist/react/format-number';

const App = () => (
  <>
    <SlFormatNumber type="percent" value={0} />
    <br />
    <SlFormatNumber type="percent" value={0.25} />
    <br />
    <SlFormatNumber type="percent" value={0.5} />
    <br />
    <SlFormatNumber type="percent" value={0.75} />
    <br />
    <SlFormatNumber type="percent" value={1} />
  </>
);

Localization

Use the lang attribute to set the number formatting locale.

English:
German:
Russian:

English: <sl-format-number value="2000" lang="en" minimum-fraction-digits="2"></sl-format-number><br />
German: <sl-format-number value="2000" lang="de" minimum-fraction-digits="2"></sl-format-number><br />
Russian: <sl-format-number value="2000" lang="ru" minimum-fraction-digits="2"></sl-format-number>

import SlFormatNumber from '@shoelace-style/shoelace/dist/react/format-number';

const App = () => (
  <>
    English: <SlFormatNumber value="2000" lang="en" minimum-fraction-digits="2" />
    <br />
    German: <SlFormatNumber value="2000" lang="de" minimum-fraction-digits="2" />
    <br />
    Russian: <SlFormatNumber value="2000" lang="ru" minimum-fraction-digits="2" />
  </>
);

Currency

To format a number as a monetary value, set the type attribute to currency and set the currency attribute to the desired ISO 4217 currency code. You should also specify lang to ensure the the number is formatted correctly for the target locale.

<sl-format-number type="currency" currency="USD" value="2000" lang="en-US"></sl-format-number><br />
<sl-format-number type="currency" currency="GBP" value="2000" lang="en-GB"></sl-format-number><br />
<sl-format-number type="currency" currency="EUR" value="2000" lang="de"></sl-format-number><br />
<sl-format-number type="currency" currency="RUB" value="2000" lang="ru"></sl-format-number><br />
<sl-format-number type="currency" currency="CNY" value="2000" lang="zh-cn"></sl-format-number>

import SlFormatNumber from '@shoelace-style/shoelace/dist/react/format-number';

const App = () => (
  <>
    <SlFormatNumber type="currency" currency="USD" value="2000" lang="en-US" />
    <br />
    <SlFormatNumber type="currency" currency="GBP" value="2000" lang="en-GB" />
    <br />
    <SlFormatNumber type="currency" currency="EUR" value="2000" lang="de" />
    <br />
    <SlFormatNumber type="currency" currency="RUB" value="2000" lang="ru" />
    <br />
    <SlFormatNumber type="currency" currency="CNY" value="2000" lang="zh-cn" />
  </>
);

Importing

If you’re using the autoloader or the traditional loader, you can ignore this section. Otherwise, feel free to use any of the following snippets to cherry pick this component.

Script

Import

Bundler

React

To import this component from the CDN using a script tag:

<script type="module" src="https://cdn.jsdelivr.net/npm/@shoelace-style/shoelace@2.18.0/cdn/components/format-number/format-number.js"></script>

To import this component from the CDN using a JavaScript import:

import 'https://cdn.jsdelivr.net/npm/@shoelace-style/shoelace@2.18.0/cdn/components/format-number/format-number.js';

To import this component using a bundler:

import '@shoelace-style/shoelace/dist/components/format-number/format-number.js';

To import this component as a React component:

import SlFormatNumber from '@shoelace-style/shoelace/dist/react/format-number';

Properties

Name	Description	Type	Default
`value`	The number to format.	`number`	`0`
`type`	The formatting style to use.	`'currency' \| 'decimal' \| 'percent'`	`'decimal'`
`noGrouping` `no-grouping`	Turns off grouping separators.	`boolean`	`false`
`currency`	The ISO 4217 currency code to use when formatting.	`string`	`'USD'`
`currencyDisplay` `currency-display`	How to display the currency.	`'symbol' \| 'narrowSymbol' \| 'code' \| 'name'`	`'symbol'`
`minimumIntegerDigits` `minimum-integer-digits`	The minimum number of integer digits to use. Possible values are 1–21.	`number`	-
`minimumFractionDigits` `minimum-fraction-digits`	The minimum number of fraction digits to use. Possible values are 0–20.	`number`	-
`maximumFractionDigits` `maximum-fraction-digits`	The maximum number of fraction digits to use. Possible values are 0–0.	`number`	-
`minimumSignificantDigits` `minimum-significant-digits`	The minimum number of significant digits to use. Possible values are 1–21.	`number`	-
`maximumSignificantDigits` `maximum-significant-digits`	The maximum number of significant digits to use,. Possible values are 1–21.	`number`	-
`updateComplete`	A read-only promise that resolves when the component has finished updating.

Learn more about attributes and properties.