44 lines
1.7 KiB
Markdown
44 lines
1.7 KiB
Markdown
# Number
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A collection of utilities to propery localize numerical values in WooCommerce
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## Installation
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Install the module
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```bash
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npm install @woocommerce/number --save
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```
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_This package assumes that your code will run in an **ES2015+** environment. If you're using an environment that has limited or no support for ES2015+ such as lower versions of IE then using [core-js](https://github.com/zloirock/core-js) or [@babel/polyfill](https://babeljs.io/docs/en/next/babel-polyfill) will add support for these methods. Learn more about it in [Babel docs](https://babeljs.io/docs/en/next/caveats)._
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## Usage
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```JS
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import { formatNumber, formatValue, calculateDelta } from '@woocommerce/number';
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// It's best to retrieve the site currency settings and compose them with the format functions.
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import { partial } from 'lodash';
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// Retrieve this from the API or a global settings object.
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const siteNumberOptions = {
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precision: 2,
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decimalSeparator: '.',
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thousandSeparator: ',',
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};
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// Compose.
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const formatStoreNumber = partial( siteNumberOptions, formatNumber );
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const formatStoreValue = partial( siteNumberOptions, formatValue );
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// Formats a number using site's current locale.
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const localizedNumber = formatStoreNumber( 1337 ); // '1,377'
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// formatValue's second argument is a type: average, or number
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// The third argument is the number/value to format
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// (The first argument is the config object we composed with earlier)
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const formattedAverage = formatStoreValue( 'average', '10.5' ); // 11 just uses Math.round
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const formattedNumber = formatStoreValue( 'number', '1337' ); // 1,337 calls formatNumber ( see above )
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// Get a rounded percent change/delta between two numbers
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const delta = calculateDelta( 10, 8 ); // '25'
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```
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