Is it possible to use Jquery to animate Background-color?

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3

I recently created a Javascript script to make a color exchange loop I used add class and remove class, but when I went to practice in jQuery it didn’t work.

This is my code:

$(".alpha").animate({"background-color":"#09f"}, 3000);

I was researching and apparently jQuery doesn’t have Animate for background-color, so I think I’ll need another api, otherwise what I’m doing wrong?

3 answers

4


You can (and should, for performance reasons) use CSS. That is by adding and removing classes.

An example would be like this:

setInterval(() => {
  document.querySelector('.alpha').classList.toggle('active');
}, 1500);
.alpha {
  padding: 50px 30px;
  background-color: #07f;
  transition: background-color 1s;
}

.alpha.active {
  background-color: #f50;
}
<div class="alpha"></div>

3

According to the official documentation, the animate only works with simple numeric value properties, which does not include background-color, because it uses hexadecimal values in this case:

All animated properties should be animated for a single value numerical, except as indicated below; most properties which are non-numerical cannot be animated using functionality basic jQuery (for example, width, height, or left can be animated, but background-color cannot be unless the plugin jQuery.Color be used).

Text extracted and translated from documentation.

The documentation itself indicates a plugin called jQuery Color that applies the animate at the background-color, in addition to other color-related properties (listed on the plugin page).

Behold:

$(".alpha").animate({"background-color":"#09f"}, 3000);
.alpha{
   width: 100px;
   height: 100px;
   background-color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
/*! jQuery Color [email protected] http://github.com/jquery/jquery-color | jquery.org/license */
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</script>
<div class="alpha"></div>

1

I believe that with Jquery is not even possible, but you can use CSS

$(document).ready(function() {
  $("#janela").addClass("animar");
})
#janela {
  width: 100px;
  height: 100px;
  background-color: yellow;
  left: 0;
  position: relative;
}

.animar {
  animation: andar 3s;
}

@keyframes andar {
  100% {
    background-color: #09f;
  }
}
<script type="text/javascript" src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<div id="janela"></div>

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