prepend.js

prepend.js

class InvalidString extends Error {
	constructor(message, cause) {
		super(message);
		this.cause = cause;
		this.name = "InvalidString"
	}
}

const main = () => {
	const text = args.join(" ");

	if (!text.includes("<~~")) {
		throw new InvalidString("The message supplied to prepend does not contain <~~");
	}
	const splitText = text.split("<~~");
	return `${splitText[1]}${splitText[0]}`;
}