ChayeORCode/DOM_2.html at main · ShifaRabbani/ChayeORCode · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>DOM</title>
</head>
<body style="background-color: #212121; color: #ffffff;">
    <div class="parent">
    <div class="day">Monday</div>
    <!-- this is for comment -->
    <div class="day">Tuesday</div>
    <div class="day">Thruday</div>
    <div class="day">Friday</div>
 </div>

 <script>
    const parent = document.querySelector('.parent')
    console.log(parent);
    console.log(parent.children);
    console.log(parent.children[1]);

    //   for (let i=0; i<parent.children.length; i++) {

    //    console.log(parent.children[i].innerHTML);
    //   }
    // OR
    for (const i in parent.children.length) {
    console.log(parent.children[i].innerHTML);
    }
    parent.children[1].style.color ='orange'
    console.log(parent.firstElementChild);  //Access 1st child
    console.log(parent.lastElementChild);   //Access last child

 const dayOne= document.querySelector('.day')
 console.log(dayOne);
 console.log(dayOne.parentElement);   //Acees parent element Means all the element
 console.log(dayOne.nextElementSibling);   //Acees siblings

//  console.log("Nodes" , parent.childNodes);
 // child node is a complete tree  struchure , count a line of code also count a next line and
 //  also count a comment


//  ******************* how to creat a Node list Programetly***********
//     ***********  this is how wo generate a document,slect ,change
   const h1=document.createElement('h1')
   console.log(h1);
   h1.className = 'main'
   h1.id = Math.round(Math.random() * 10  + 1)

   h1.setAttribute('title' , 'generated title')
   h1.style.backgroundColor='purple'
   h1.style.color='pink'
   h1.style.padding='20px'
//    h1.innerText="Shifa Rabbani"  // or
   const addText = document.createTextNode("Shifa Rabbani Gundapour")
   h1.appendChild(addText)

   document.body.appendChild(h1)    //Now attach these all in to a documnet page

 </script>
</body>
</html>