install
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js" integrity="sha512-894YE6QWD5I59HgZOGReFYm4dnWc1Qt5NtvYSaNcOP+u1T9qYdvdihz0PPSiiqn/+/3e7Jo4EaG7TubfWGUrMQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
innerHTML() / html()
<p class="hello">안녕</p>
// <script>
// document.querySelector('.hello').innerHTML('바보');
$('.hello').html('바보');
// </script>
스타일변경
$('.hello').css('color', 'red');
클래스명 변경
$('.hello').addClass('클래스명');
$('.hello').removeClass('클래스명');
$('.hello').toggleClass('클래스명');
html 여러개 변경
<p class="hello">안녕</p>
<p class="hello">안녕</p>
<p class="hello">안녕</p>
// <script>
// document.querySelectorAll('.hello')[0].innerHTML = '바보';
// document.querySelectorAll('.hello')[1].innerHTML = '바보';
// document.querySelectorAll('.hello')[2].innerHTML = '바보';
$('.hello').html('바보');
// </script>
이벤트리스너
<p class="hello">안녕</p>
<button class="test-btn">버튼</button>
<script>
$('.test-btn').on('click', function(){
어쩌구~
});
</script>
UI 애니메이션
<p class="hello">안녕</p>
<button class="test-btn">버튼</button>
<script>
$('.test-btn').on('click', function(){
$('.hello').fadeOut();
});
</script>