is-minified-code/src/index.js

Check if a piece of code is minified.

const COMMENT_PATTERN = /\/\*[\s\S]*?\*\/\r?\n?|\/\/.{0,200}?(?:\r?\n|$)/g;
const TRAILING_LF_PATTERN = /\r?\n$/;

module.exports = function (code) {
	code = code.replace(COMMENT_PATTERN, '').replace(TRAILING_LF_PATTERN, '');
	let lines = code.split('\n').map(l => l.length).filter(l => l);
	return lines.length <= 1 || median(lines) > 200;
};

function median (values) {
	values.sort((a, b) => a - b);
	let half = Math.floor(values.length / 2);

	if (values.length % 2) {
		return values[half];
	}

	return (values[half - 1] + values[half]) / 2;
}