@esm2cjs/strip-final-newline/esm/index.js

Strip the final newline character from a string/buffer. This is a fork of sindresorhus/strip-final-newline, but with CommonJS support.

export default function stripFinalNewline(input) {
	const LF = typeof input === 'string' ? '\n' : '\n'.charCodeAt();
	const CR = typeof input === 'string' ? '\r' : '\r'.charCodeAt();

	if (input[input.length - 1] === LF) {
		input = input.slice(0, -1);
	}

	if (input[input.length - 1] === CR) {
		input = input.slice(0, -1);
	}

	return input;
}