How to create ripple effect when clicked in js? (code example)

The content of this article is to introduce how to create the ripple effect when clicking on js? (code example). It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

Let’s take a look at the renderings first:

##html code:

<p>
   <i></i>
</p>

css code:

<style>
p {
    margin: 0;
    position: relative;
    padding: 60px 30px;
    background-color: orange;
    color: #fff;
    width: 200px;
    overflow: hidden;
    text-align: center;
    border: 20px solid #000;
}
i {
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 50%;
}
</style>

js code:

<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
<script>
    (function() {        
        var key = true;
        $("p").click(function(event) {            
            var e = event || window.event;            
                if (key) {
                    key = false;                
                    var scale = 0;                
                    var a = 0.8;                
                    var timer = setInterval(function() {                    
                    if (scale >= 1 || a <= 0) {
                          scale = 0;
                          a = 0.8;
                          clearInterval(timer);
                          key = true;
                    }
                    $("i").css({                        
                        "left": e.pageX - 8 - 20,                        
                        "top": e.pageY - 8 - 20,                        
                        "transform": "translate(-50%,-50%) scale(" + scale + ")",                        
                        "background-color": "rgba(225,225,225," + a + ")"
                    });
                    scale += 0.01;
                    a -= 0.008;
                }, 10)
            }
        })
    }())
</script>

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