putout v23.5.0

What about 🗺Source Map?

Mounting the Ox, slowly
I return homeward.
The voice of my flute intones
through the evening.
Measuring with hand-beats
the pulsating harmony,
I direct the endless rhythm.
Whoever hears this melody
will join me
(c) Zen Ten Bulls

Hi folks!

Source maps is everywhere! Each time you open a website, it loads tones of minified JavaScript bundles and some of them has source maps to simplify debugging.

Same thing exists in node.js and one nice tool requires it. This is mock-import. It helps to mock import you are using, so you can test it easily with 📼Supertape (of course 😏!).

🗺 Sourcemap

When you need sourcemap you can have it easily, just pass:

• ✅ sourceFileName;
• ✅ sourceMapName;

putout(source, {
    fix: false,
    sourceFileName: 'hello.js',
    sourceMapName: 'world.js',
    plugins: [
        'remove-unused-variables',
    ],
});
// returns
({
    code: '\n' +
    `    const hello = 'world';\n` +
    `    const hi = 'there';\n` +
    '    \n' +
    '    console.log(hello);\n' +
    '// {"version": 3, ...}',
    places: [{
        rule: 'remove-unused-variables',
        message: '"hi" is defined but never used',
        position: {line: 3, column: 10},
    }],
});

That's all for today! Have a nice maps 🦉 🥳 !

🐞 fix

• (eslint-plugin-putout) newline-function-call-arguments: exclude code contains quote

🔥 feature

• (putout) add support of sourcemaps
• (@putout/engine-parser) add sourcemaps support