**while let n=10; let i=0; while(i<=n){ i++; console.log(i); }

*do while let n=10; do{ i++; console.log(i); }while(i<=n);

****Functions are two types ***** **user defined no arg no return no arg with return with arg no return with arg with return

**pre defined array obj math string date tym

          *****todo list******

<title>Login Page</title>

<form>
    <input type="text" id="todo" value="" placeholder="Enter a TODO"/>
    <input type ="button" value="ADD" id="btn"/>

</form>
<table>
    <thead>
        <tr>
            <th>SNO</th>
            <th>Description</th>
            <th>Action</th>
            
        </tr>
    </thead>
</table>

<script src="./app.js"></script> --------------------------------------------------------------------------------------------------- ****array**** push --is a function which is to add the element in the end of array

let itemList =[]; let addItem = () =>{ let item=document.getElementById('todo').value; itemList.push(item); console.log(itemList); document.getElementById('todo').value=""; getItem(); } let getItem =() =>{ let emptystr=""; let sno=0; itemList.forEach(function(value,index){ sno +=1; emptystr += "" +sno+""+value+"Remove"

})

document.getElementById('tbl').innerHTML=emptystr; }

---