script.js

// Script.js 
function validate() { 
    let name = 
        document.getElementById("name").value; 
    let subject = 
        document.getElementById("subject").value; 
    let phone = 
        document.getElementById("phone").value; 
    let email = 
        document.getElementById("email").value; 
    let message = 
        document.getElementById("message").value; 
    let error_message = 
        document.getElementById("error_message"); 

    error_message.style.padding = "10px"; 

    let errors = []; 

    if (name.length < 1) { 
        errors.push("Please Enter a valid Name");} 
    if (subject.length < 1) { 
        errors.push("Please Enter a Correct Subject");} 
    if (phone.length < 10) { 
        errors.push("Please Enter a valid Phone Number");} 
    //if (isNaN(phone) || phone.length < 10) { 
        //errors.push("Please Enter a valid Phone Number");} 
    if (email.indexOf("@") == -1 || email.length < 6) { 
        errors.push( 
            "Please Enter a valid Email");} 
    if (message.length <= 20) { 
        errors.push( 
            "Please Enter More Than 20 Characters");} 

    if (errors.length > 0) { 
        error_message.innerHTML = 
            errors.join("<br>"); 
        return false;} 
    else { 
        alert( 
            "Form Submitted Successfully!"); 
        return true;}}