reverseString.js

Author: amit265

javascript/5_string-programs/reverseString.js

@@ -0,0 +1,42 @@
+// 3. Reverse a String
+
+// 1. Using split(), reverse() and join()
+
+{
+  const str = "hello";
+  let reverse = str.split("").reverse().join("");
+  console.log(reverse);
+}
+
+// 2. Using a for loop
+
+{
+  let str = "heythere";
+  let reverseStr = "";
+  for (let i = str.length - 1; i >= 0; i--) {
+    reverseStr += str[i];
+  }
+  console.log(reverseStr);
+}
+
+// 3. Using Recursion
+
+{
+  function reverseString(str) {
+    if (str === "") {
+      return str;
+    } else {
+      return reverseString(str.substr(1)) + str[0];
+    }
+  }
+
+  console.log(reverseString("hello"));
+}
+
+// 4. Using Spread Operator
+
+{
+  let s = "hello";
+  const reverse = [...s].reverse().join("");
+  console.log(reverse);
+}