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Some basic helpers for generating CSS style declarations in Elm
version 3.1.0
license BSD2
native-modules False
elm-version 0.18.0 <= v < 0.19.0
Tag 3.1.0
Committed At 2017-04-13 20:38:39 UTC
elm-lang/html 2.0.0 <= v < 3.0.0 2.0.0
elm-lang/core 5.0.0 <= v < 6.0.0 5.1.1

README

Some basic helpers for generating CSS style declarations in Elm

CSS style declarations are key-value pairs consisting of a property name and a value assigned to that property. When working with styles in Elm, it is sometimes desirable to write a function that takes a CSS value, performs a calculation, and returns the modified value. This library allows for a basic type differentiation of CSS values so that type-mismatch errors can be handled more easily.

For example, suppose you want to write a function that takes a background color and returns a suitable foreground color. If the background color were stored as a string, you would have to parse the string in order to determine whether it properly encodes a color value, handling any type conversion errors in the process. The advantage of using the CssBasics package in this case is that it gives you a convenient way of storing the color value as a Color and converting it to a string only when the style declaration is rendered. So when writing a function like the example above, error handling can be performed with simple pattern matching — if the CssValue supplied is of the Col type, perform the calculation, otherwise return a default value.

Dependencies:

Extensions: