# style-map `{{style-map}}` is used to easily add a list of styles, conditionally, and have them all formatted nicely to be printed in a DOM `style` attribute. As well as an entry-like array you can also pass an additional `unit` property as the 3rd item in the array. This is to make it easier to do mathamatical calculations for units without having to use `(concat)`. If any property has a value of `null` or `undefined`, that style property will not be included in the resulting string. ```hbs preview-template
This div has the correct style added/omitted.
style={{style-map (array 'outline' '1px solid red') (array 'width' '600px') (array 'height' 100 'px') (array 'padding' 1 'rem') (array 'background' null) }}
``` ## Positional Arguments | Argument | Type | Default | Description | | --- | --- | --- | --- | | `entries` | `styleInfo[]` | | An array of `styleInfo`s to map | ## Named Arguments | Argument | Type | Default | Description | | --- | --- | --- | --- | | `transform` | `boolean` | true | whether to perform the build-time 'helper to modifier' transpilation | ## Types | Type | Default | Description | | --- | --- | --- | | `styleInfo` | `([string, (string \| undefined), string] \| [string, (string \| undefined)])` | |