Reduce context-switching when defining style
in React Component.
To use inline styles in React, you often find yourself writing this type of code:
const styles = {
title: {
borderBottomLeftRadius: '10px',
// ^ ^ ^ ^ ^^
// | | | | ||___ annoying trailing comma
// | | | |____|____ annoying JS quotes
// |_____|___|_________________ annoying camel case
//
// (╯°□°)╯︵ ┻━┻ I WANT CSS BACK!!!
}
}
With css-template
, those times are gone! Instead of writing this:
// THIS IS BAD FOR YOUR EYES
const styles = {
title: {
marginTop: '10px',
fontSize: '120%',
lineHeight: '1.5',
textAlign: 'center',
backgroundColor: 'rgba(100, 255, 100, 0.7)',
},
footer: {
width: 'calc(100% - 16px)',
textAlign: 'right',
marginTop: '20px',
}
};
you can write something like this
// THIS IS BETTER
const styles = {
title: css`{
margin-top: 10px;
font-size: 120%;
line-height: 1.5;
text-align: center;
background-color: rgba(100, 255, 100, 0.7);
}`,
footer: css`{
width: calc(100% - 16px);
text-align: right;
margin-top: 20px;
}`,
};
-
translate snake-case to camelCase
css`margin-top: 20px` // will be translated to { marginTop: '20px' }
-
multiple lines with optional brackets for better visuals
css`{ padding: 10px; margin: 10px; }` // is equivalent to css` padding: 10px; margin: 10px; `
-
optional final semicolon
css`padding: 10px` // is equivalent to css`padding: 10px;`
-
multiple rules in one line
css`padding: 10px; margin: 10px`
-
compose other style objects
const bigFont = css`font-size: 200%` const underlined = css`text-decoration: underline` const myStyle = css`{ composes: ${bigFont}; composes: ${underlined}; padding: 10px; margin: 10px; }`
npm i -S css-template
import css from 'css-template';
const COLOR_MAIN = 'white';
const BACKGROUND_MAIN = '#336699';
const awesomeStyles = css`font-size: 200%`;
const styles = {
header: css`{
padding: 10px 0 20px 10px;
text-align: center;
}`,
main: css`{
composes: ${awesomeStyles};
color: ${COLOR_MAIN};
background-color: ${BACKGROUND_MAIN};
}`
};
const MyComponent = (props) => (
<div>
<div style={styles.header}>
{props.header}
</div>
<div style={styles.main}>
{props.main}
</div>
</div>
);
-
composes: ${otherStyles};
just like postcss composes feature - optional auto-prefixer
- spread numeric values like
padding: ${[10, 20, 0, 10]}px;