Add String_Methods.js with examples of string manipulation methods in JavaScript

codeswithpankaj · codeswithpankaj · commit 079f4b7c5c5d · 2025-04-12T07:28:57.000Z
diff --git a/Example/String/String_Methods.js b/Example/String/String_Methods.js
@@ -0,0 +1,44 @@
+// String in JavaScript
+
+// String is a built-in object in JavaScript that represents a sequence of characters.
+// Strings are immutable, meaning once created, they cannot be changed.
+// However, you can create new strings based on existing ones.
+// Strings can be created using single quotes, double quotes, or backticks (template literals).
+
+data = "Codes With Pankaj";
+
+// String Methods
+// 1. length
+console.log(data.length);
+
+// 2. charAt
+console.log(data.charAt(6));
+
+// 3. indexOf
+console.log(data.indexOf("Pankaj"));
+
+// 4. lastIndexOf
+console.log(data.lastIndexOf("Pankaj"));
+
+// 5. slice
+console.log(data.slice(0, 4)); // Codes
+
+// 6. substring
+console.log(data.substring(0, 4)); // Codes
+
+// 7. substr
+console.log(data.substr(0, 4)); // Codes
+
+// 8. toUpperCase
+console.log(data.toUpperCase()); // CODES WITH PANKAJ
+
+// 9. toLowerCase
+
+console.log(data.toLowerCase()); // codes with pankaj
+
+// 10. replace
+console.log(data.replace("Pankaj", "John")); // Codes With John
+
+// 12. replaceAll
+
+console.log(data.replaceAll("a", "John")); // Codes With John
