add reverse string

Author: Connor Leech

udemy-interview-bootcamp-course/string_reversal.js

@@ -0,0 +1,42 @@
+/*
+
+Given a string, return a new string with the reversed
+order of characters
+
+reverse('apple') => 'elppa'
+*/
+
+function reverse(str){
+	let result = '';
+	for(var i = str.length; i >= 0; i--){
+		result += str.charAt(i);
+	}
+	return result;
+}
+
+// use built in array and string 
+function reverseSolution1(str){
+	return str.split('')
+			.reverse()
+			.join('');
+}
+
+// use for ... of and prepend
+function reverseSolution2(str){
+	let result = '';
+	for(let char of str){
+		result = char + result;
+	}
+	return result;
+}
+
+// use array reduce
+function reverseSolution3(str){
+	return str
+		.split('')
+		.reduce((result, letter)=> letter + result, '');
+}
+
+console.log(reverseSolution3('hello'));
+
+module.exports = reverse;