addTodoValue function explained

//If input value is empty alert "Enter all fields" return false

//open localStorage using localStorage.getItem("name of your to-do"). Here I put it in a variable called record.

//if not record, that is if the localStorage (record) doesn't exist. Create a new array I called mine todoList, create a new object I called mine recordObj.
// Push the created object (recordObj) to the created list called todoList.

//Stringify the list and set it to localStorage using localStorage.setItem.

//else if the localStorage exists, get localStorage using localStorage.get.

// Convert it to json using json.parse (I put it in a variable called result)

//Create a new object and add the content in the input ( The input tag in the frontend/UI).

//Push it to the result.

//stringify the result

// set it back in the localStorage using localStorage.setItem.

//NB td and tn are Todo name and Todo Description.

//NB tn.value is the text from the text input for Todo name in the UI and td same for Todo Description.

// Ask any question on WhatsApp.







function addTodoValue(){
       if (!tn.value || !td.value){
         alert('Enter required fields');
         return false;
       }
       let record = localStorage.getItem('todo');
       if (!record){
         let todoList = [];
         recordObj = {"todoName":tn.value,
                      "todoDesc":td.value};
         todoList.push(recordObj)
         localStorage.setItem('todo', JSON.stringify(todoList));
       }
       else{

         recordObj = {"todoName":tn.value,
                       "todoDesc":td.value};

         result = localStorage.getItem('todo');
         result = JSON.parse(result)
         result.push(recordObj);
         localStorage.setItem('todo', JSON.stringify(result));
       }
       tn.value = '';
       td.value = '';
    }// End of add function