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CSS Base

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Add External Stylesheets/Pens

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              <div class="box1">naka</div>
<div class="box2">
	<div>nishi</div>
	<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Architecto voluptatibus pariatur ipsum amet dolores, consequatur facilis vitae ea tempore delectus.</p>
</div>

            
          
!
            
              .box1, .box2
  width: 100px
  border: solid 1px  
	
.hover
  background-color: purple

            
          
!
            
              'use strict';

//event.currentTargetを使用
//こちらが基本的に望ましい
class AddHover {
  constructor(target) {
    this.target = target;
    this.hover(this.target);
    console.log("new"+this.target);
  }
  
  hover(target) {
    let $hoverTarget = $(target);
    let rolloverClass = 'hover';
    $hoverTarget.hover(
      //event.targetとevent,currentTargetの違いに注意
      (event) => {
        $(event.currentTarget).addClass(rolloverClass);    
      },
      (event) => {
        $(event.currentTarget).removeClass(rolloverClass); 
      }
    )
  }
}

//event.targetを使用
//今回の用途にはふさわしくない
//もちろんこの指定を使うべきシーンもある
class AddHoverTarget {
  constructor(target) {
    this.target = target;
    this.hover(this.target);
    console.log("new"+this.target);
  }
  
  hover(target) {
    let $hoverTarget = $(target);
    let rolloverClass = 'hover';
    $hoverTarget.hover(
      //event.targetとevent,currentTargetの違いに注意
      (event) => {
        $(event.target).addClass(rolloverClass);    
      },
      (event) => {
        $(event.target).removeClass(rolloverClass); 
      }
    )
  }
}

new AddHover('.box1');
new AddHoverTarget('.box2');

            
          
!
999px
Loading ..................

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