FIX-1847 added methods in string utils in order to utilise in our code.

src/Utils/stringUtils.js

@@ -3,8 +3,8 @@
  * @param {string} str String whose first letter is to be capitalized
  * @returns A string with first letter capitalized
  */
-export const capitalizeFirstLetter = (str) => {	
-  if (str === null || str === undefined) {
+export const capitalizeFirstLetter = (str) => {
+	if (str === null || str === undefined) {
 		return "";
 	}
 	if (typeof str !== "string") {
@@ -12,7 +12,7 @@ export const capitalizeFirstLetter = (str) => {
 	}
 	if (str.length === 0) {
 		return "";
-	}  
+	}
 	return str.charAt(0).toUpperCase() + str.slice(1);
 };
 
@@ -22,15 +22,34 @@ export const capitalizeFirstLetter = (str) => {
  * @returns A string with first letter lower cased
  */
 
-export const toLowerCaseFirstLetter = (str) => {	
+export const toLowerCaseFirstLetter = (str) => {
 	if (str === null || str === undefined) {
-		  return "";
-	  }
-	  if (typeof str !== "string") {
-		  throw new TypeError("Input must be a string");
-	  }
-	  if (str.length === 0) {
-		  return "";
-	  }  
-	  return str.charAt(0).toLowerCase() + str.slice(1);
-  };
+		return "";
+	}
+	if (typeof str !== "string") {
+		throw new TypeError("Input must be a string");
+	}
+	if (str.length === 0) {
+		return "";
+	}
+	return str.charAt(0).toLowerCase() + str.slice(1);
+};
+
+/**
+ * Checks if a string is null, undefined, or empty (including strings with only whitespace).
+ * @param {string} str - The string to check.
+ * @returns {boolean} - Returns true if the string is null, undefined, or empty.
+ */
+export const isEmpty = (str) => {
+	// Check if string is null, undefined, or empty (including whitespace only)
+	return str === null || str === undefined || str.trim().length === 0;
+};
+
+/**
+ * Checks if a string is not null, undefined, and not empty (including strings with only whitespace).
+ * @param {string} str - The string to check.
+ * @returns {boolean} - Returns true if the string is not null, undefined, and not empty.
+ */
+export const isNotEmpty = (str) => {
+	return !isEmpty(str);
+};