multiline.js

// TODO: longer method name
Function.prototype.extractBlockCommentAsMultilineString = function() {
	return this.toString().match(/^function \(\)\{\s*\/\*((?:[^*]|\*+[^*\/])*)\*+\/\s*\}$/)[1];
};

var s = function(){/*
	STRING
	GOES
	HERE
*/}.extractBlockCommentAsMultilineString();

console.log("\r\n\tSTRING\r\n\tGOES\r\n\tHERE\r\n" === s); // true, possibly

extractMultilineStringFromFunctionContainingOnlyABlockComment()

This was funnier before template literals.