general reverse method

my_reverse.html

<script>
	function start() {
		// var text = prompt("here a text");
		text="adanada";
		// text = text.split('').reverse().join('');
		// console.log(eval(text));
		text = join(reverse(split(text)));
		console.log(text);
	}

	function split(keyword) {
		result = [];
		for (var i = 0; i < keyword.length; i++) {
			result.push(keyword[i]);
		}
		return result;
	}

	function reverse(arr) {
		result = [];
		for (var i = arr.length - 1; i >= 0; i--) {
			result.push(arr[i]);
		}
		return result;
	}

	function join(arr) {
		result = "";
		for (var i = 0; i < arr.length; i++) {
			result += arr[i];
		}
		return result;
	}

	start();
</script>