JAVASCRIPT

how to validate form in javascript

//use === or == for condition checking in javascript./

if(document.getElementById('name').value === ""){
   alert("enter something valid");
   return false;
}

javascript For Validation

let student = {
    name: 'Jack',
    age: 24
}
const handler = {
    // get the object key and value
    get(obj, prop) {

    // check condition
    if (prop == 'name') {
      return obj[prop];
    } else {
      return 'Not allowed';
    }
  }
}
const proxy = new Proxy(student, handler);
console.log(proxy.name); // Jack
console.log(proxy.age); // Not allowed

validation of form using js

javascript form validation

validate form using javascript

let input_value = document.forms["myForm"]["myInputField"].value;
if(input_value == undefined || input_value.trim() == "") {
  console.log("InputName is required") 
}