Pan card validation script

Regular Expressions/PAN Card Validation Script/Script.js

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+function onSubmit() {
+    // Get the value from the PAN field (replace 'u_pan_number' with your actual field name)
+    var panNumber = g_form.getValue('u_pan_number');
+
+    // Regular expression for validating PAN card number
+    var panRegex = /^[A-Z]{5}[0-9]{4}[A-Z]{1}$/;
+
+    // Validate the PAN number
+    if (!panRegex.test(panNumber)) {
+        alert('Please enter a valid PAN card number.');
+        // Prevent the form from being submitted
+        return false;
+    }
+
+    // Allow the form to be submitted
+    return true;
+}

Regular Expressions/PAN Card Validation Script/readme.md

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+Description
+This client script in ServiceNow is designed to validate the format of a PAN (Permanent Account Number) card during form submission.
+By ensuring that the PAN card number entered adheres to the expected format, this script enhances data integrity and user experience. 
+If the entered PAN number is invalid, the script alerts the user, preventing form submission until a valid PAN number is provided.
+
+Key Features
+
+1. Format Validation: Checks PAN card format (5 letters, 4 digits, 1 letter).
+2. User Alerts: Provides immediate feedback for invalid entries.
+3. Submission Control: Prevents form submission with invalid PAN numbers.
+4. Customizable: Easily adjustable for different field names.
+5. Client-Side Efficiency: Quick validation without server delays.
+6. Data Integrity: Ensures only correctly formatted PAN numbers are accepted.