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JavaScript

Posted by msdsmd sm,dfsadf
msdsmd sm,dfsadf
1,124 Points

Can someone clarify why I am getting two instead of one when I clicked the div because 2 < 2 can't be valid?

<!DOCTYPE html> <html> <body> <div>0 <script> let i = 0; let div = document.querySelector('div') div.addEventListener('click',function(){ if(i < 2){ i += 1 div.innerHTML = i } }) </script> </body> </html>

2 Answers

Michael Kobela
.a{fill-rule:evenodd;}techdegree seal-36
Michael Kobela
Full Stack JavaScript Techdegree Graduate 19,570 Points

I reformatted you code below, and added semi colons as necessary, now;

On the first click, 0 < 2 is true so i becomes one. On the second click 1 < 2 is true so i becomes two. On the third click 2 <2 is false so nothing happens

<!DOCTYPE html>
<html>
<body>
  <div>0
    <script>
      let i = 0;
      let div = document.querySelector('div');
      div.addEventListener('click',
        function () {
          if (i < 2) {
            i += 1;
            div.innerHTML = i;
          }
        });
    </script>
</body>
</html>
msdsmd sm,dfsadf
msdsmd sm,dfsadf
1,124 Points
msdsmd sm,dfsadf
msdsmd sm,dfsadf
1,124 Points

I trying to apply a ripple effect on child of a div, but I don't how to make the animation based on where I clicked on.

<!DOCTYPE html> <html> <head> <title>Page Title</title> <style> body > div{position:relative; height:100%;overflow:hidden; width:100%;border:3px solid #000; } @keyframes move{ 0%{ transform:scale(0);opacity:1; } 100%{ opacity:0;transform:scale(1); } } .child{ height: 100%; opacity:0; cursor:pointer; background: rgba(0, 0, 0, 1); width: 100%; position: absolute; }

.blue{animation:2.5s move; }

,::before,*::after{margin:0;padding:0;box-sizing:border-box;}

</style> </head> <body> <div tabindex="0"> <div class="child"></div> </div> <script> const parent = document.querySelector('div') const child = parent.children[0] child.addEventListener('click',function(e){

child.classList.add('blue') child.style.left = e.clientX + "px"; child.style.top = e.clientY + "px";

}) </script> </body> </html>