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til/javascript/formatting-values-with-units-for-display.md

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# Formatting Values With Units For Display
There are all kinds of values and units your app may need to display. The
[`Intl.NumberFormat`
API](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat)
that is available in modern browsers can help with standardizing that display.
How about formatting distances for display?
Here is a compact formatting of miles:
```javascript
> const milesFormat =
Intl.NumberFormat("en-US", { style: "unit", unit: "mile" });
> milesFormat.format(1500)
"1,500 mi"
```
Here is two different formats for kilometers:
```javascript
> const kmFormat =
Intl.NumberFormat("en-US", { style: "unit", unit: "kilometer" });
> kmFormat.format(1500)
"1,500 km"
> const kilometerFormat =
Intl.NumberFormat("en-US", { style: "unit", unit: "kilometer", unitDisplay: "long" })
> kilometerFormat.format(1500)
"1,500 kilometers"
```
Give it a try with something else like `miles-per-hour`, `liter`, or `gallon`.
[source](https://twitter.com/jamesreggio/status/1196574375916400640?s=21)