babel-plugin-mjsx v4.1.1

babel-plugin-mjsx

Mithril precompilation JSX plugin for babel.

Installation

$ npm i babel-plugin-mjsx

Usage

Add babel-plugin-mjsx to your plugins config:

$ cat .babelrc
{
     "plugins": ["mjsx"]
}

More information on setting up Babel is available in Babel's documentation

Available plugin options:

• jsxCompliant: convert attributes to the correct casing, e.g: onClick -> onclick, or for -> htmlFor.
• warnDeprecatedHtml: Warns of deprecated HTML tags such as blink and center.

More information on plugin options syntax is available in Babel's documentation

Example output:

let a = {t: 1};
let KK = <div style="1" {...a}><Component foo="bar">Component children</Component></div>;

Transpiled:

var a = { t: 1 };
var KK = {
	tag: 'div',
	children: [m.component(Component, {
		foo: 'bar'
	}, ['Component children'])],
	attrs: babelHelpers._extends({
		style: '1'
	}, a)
};

Change Log

v4.1.1

• Build fix

v4.1.0

• Added option to convert html attributes to proper casing

  // Add "jsxCompliant" to babel plugin options:
  $ cat .babelrc
  {
      "plugins":[
          ["mjsx", { jsxCompliant: true }]
      ]
  }

• Added explicit warnDeprecatedHtml option to turn on the deprecated html tags warning added in v3

  // Add "warnDeprecatedHtml" to babel plugin options:
  $ cat .babelrc
  {
      "plugins":[
          ["mjsx", { warnDeprecatedHtml: true }]
      ]
  }

v4.0.0

• Changed output to trim whitespace similar to how v1.x did.

v3.0.0

• Removed forcing of tags to be "valid" html tags
• Print warning instead of erroring for deprecated html tags