How can I prevent div from shaking when I click fast?

My code is:

$(function() {
  const fullSection = $(".fullsection");
  const container = $("#container");

  // closed fullSection => height:0%();
  $(".fullsection").each(function(index, item) {
    if (!$(item).hasClass("active")) {
      $(item).animate({
        height: "0%",
      });
    }
  });

  // opened fullSection => height:100%();
  var i = 500;
  $(".fullsection").each(function(index, item) {
    if (!$(item).hasClass("active")) {
      $(item).animate({
        height: "100%",
      }, i);
      //console.log(item);
      //console.log(i);
      i += 150;
    }
    // console.log(fullSectionInactive);
  });

  var sum = 0;
  $(fullSection).click(function(event) {
    var functionCompleted = false;
    var chosenWidth = $(this).css("width");
    var chosenWidthNum = parseInt($(this).css("width"));
    var widthactive = parseInt($(this).siblings(".active").css("width"));
    var widthInactive = parseInt(!$(this).siblings(".active").css("width"));
    // Check if there are any opened section
    // if so, closing.
    $(this).siblings().each(function(index, item) {
      var eachWidthNum = parseInt($(this).css("width"));
      if (Math.floor(eachWidthNum) == Math.floor(widthactive)) {
        $(item).removeClass("active");
      }
    });
    // and the clicked element expands
    // if(){
    $(this).addClass("active");
    // }
  });
});

/* reset */

@import url("reset.css");

/* font-family: 'Abril Fatface', cursive; */


/* 400 only */

@import url('https://fonts.googleapis.com/css2?family=Abril+Fatface&display=swap');

/* global class */

body, html {
  width: 100%;
  height: 100%;
}

#container {
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
}

.fullsection {
  width: 5%;
  height: 100%;
  padding: 100px, 0;
  box-sizing: border-box;
  float: left;
  transition: width .3s ease-in-out;
  /* opacity: 0; */
}

.active {
  width: 85%;
}

.section_1 {
  background-color: tomato;
}

.section_2 {
  background-color: teal;
}

.section_3 {
  background-color: cornflowerblue;
}

.section_4 {
  background-color: slateblue;
}

<div id="container">
  <div class="fullsection section_1 active"></div>
  <div class="fullsection section_2"></div>
  <div class="fullsection section_3"></div>
  <div class="fullsection section_4"></div>
</div>
<script src="https://code.jquery.com/jquery-3.6.4.min.js" integrity="sha256-oP6HI9z1XaZNBrJURtCoUT5SUnxFr8s3BzRl+cbzUq8=" crossorigin="anonymous"></script>

i am making a page with only js (jquery) and faced a challenge. its works fine when I click each div (.fullSection) in slow tempo. However once I click each div with relatively fast tempo, suddenly divs (mainly fourth one) jerks and shakes.

I add/remove class name in order to change the width, instead of using animate(); (don't know why but it jerks pretty hard)

I want to prevent users from clicking while the div is still in changing width. or whatever that could stop those divs from jerking and shaking..

I have tried is.("animating") using return false

I want to prevent users from clicking while the div is still in changing width. or whatever that could stop those divs from jerking and shaking.

Solution

If you use ontransitionend, you can detect when an animation has finished and work with states to allow a new animation to take place. Maybe this solves it for you.

$(this).on('transitionend', function(){
    isAnimating = true
 });

$(function() {
    const fullSection = $(".fullsection"),
        container = $("#container"),
        timingStep = 150;
    
    // use state
    let canWeAnimate = true;

    fullSection.not(".active").animate({ height: "0%" });

    fullSection.each(function(index, item) {
        if (!$(item).hasClass("active")) {
            $(item).animate({ height: "100%" }, index * timingStep + 500);
        }
    });

    fullSection.click(function() {
        // check if we can animate
        if (!canWeAnimate || $(this).hasClass("active")) return;

        const _this = $(this);
        // set state to false to prevent animations
        canWeAnimate = false;

        _this.siblings(".active").removeClass("active");
        _this.addClass("active");

        _this.on("transitionend", () => {
            // set state to true to allow animations again
            canWeAnimate = true;
        });
    });
});

/* reset */

@import url("reset.css");

/* font-family: 'Abril Fatface', cursive; */


/* 400 only */

@import url('https://fonts.googleapis.com/css2?family=Abril+Fatface&display=swap');

/* global class */

body, html {
  width: 100%;
  height: 100%;
}

#container {
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
}

.fullsection {
  width: 5%;
  height: 100%;
  padding: 100px, 0;
  box-sizing: border-box;
  float: left;
  transition: width .3s ease-in-out;
  /* opacity: 0; */
}

.active {
  width: 85%;
}

.section_1 {
  background-color: tomato;
}

.section_2 {
  background-color: teal;
}

.section_3 {
  background-color: cornflowerblue;
}

.section_4 {
  background-color: slateblue;
}

<div id="container">
  <div class="fullsection section_1 active"></div>
  <div class="fullsection section_2"></div>
  <div class="fullsection section_3"></div>
  <div class="fullsection section_4"></div>
</div>
<script src="https://code.jquery.com/jquery-3.6.4.min.js" integrity="sha256-oP6HI9z1XaZNBrJURtCoUT5SUnxFr8s3BzRl+cbzUq8=" crossorigin="anonymous"></script>