appendChild usuli

appendChild usuli biron bir elementning oxiriga boshqa elementni qo‘shish imkonini beradi. Ko‘pincha createElement yordamida element yaratilgandan keyin ishlatiladi.

Sintaksis

javascriptota.appendChild(element);

Misol

Keling, bir parcha yaratamiz, unga matn o‘rnatamiz va sahifadagi #parent blokining oxiriga joylashtiramiz:

html<div id="parent">
  <p>1</p>
  <p>2</p>
  <p>3</p>
</div>

javascriptlet parent = document.querySelector('#parent');

let p = document.createElement('p');
p.textContent = '!';

parent.appendChild(p);

Kodni bajarish natijasi:

html<div id="parent">
  <p>1</p>
  <p>2</p>
  <p>3</p>
  <p>!</p>
</div>

Misol

ul berilgan. Keling, uning ichiga 9 ta li teglarini joylashtiramiz, va ularning matnini tartib raqamlari qilamiz:

html<ul id="parent"></ul>

javascriptlet parent = document.querySelector('#parent');

for (let i = 1; i <= 9; i++) {
  let li = document.createElement('li');
  li.textContent = i;
  parent.appendChild(li);
}

Kodni bajarish natijasi:

html<ul id="parent">
  <li>1</li>
  <li>2</li>
  <li>3</li>
  <li>4</li>
  <li>5</li>
  <li>6</li>
  <li>7</li>
  <li>8</li>
  <li>9</li>
</ul>

Misol

Keling, jadvalni tr va td lar bilan to‘ldiramiz:

html<table id="table"></table>

javascriptlet parent = document.querySelector('#parent');

for (let i = 1; i <= 3; i++) {
  let tr = document.createElement('tr'); // tr yaratamiz
  
  // Tr ni td lar bilan to‘ldiramiz:
  for (let j = 1; j <= 3; j++) {
    let td = document.createElement('td'); // td yaratamiz
    td.textContent = j; // unga matn yozamiz
    
    tr.appendChild(td); // yaratilgan td ni tr ning oxiriga qo‘shamiz
  }
  
  table.appendChild(tr); // yaratilgan tr ni jadvalning oxiriga qo‘shamiz
}

Kodni bajarish natijasi:

html<table id="table">
  <tr>
    <td>1</td>
    <td>2</td>
    <td>3</td>
  </tr>
  <tr>
    <td>1</td>
    <td>2</td>
    <td>3</td>
  </tr>
  <tr>
    <td>1</td>
    <td>2</td>
    <td>3</td>
  </tr>
</table>

Shuningdek qarang