Typescript

<html>
<div class="center">

	<div class="slider" data-pos="0">
		<div class="slider__slides">
			<div class="slider__slide"></div>
			<div class="slider__slide"></div>
			<div class="slider__slide"></div>
			<div class="slider__slide"></div>
		</div>
		<div class="slider__dots">
			<a href="#" class="slider__indicator"></a>
			<a href="#" class="slider__dot" data-pos="0"></a>
			<a href="#" class="slider__dot" data-pos="1"></a>
			<a href="#" class="slider__dot" data-pos="2"></a>
			<a href="#" class="slider__dot" data-pos="3"></a>
		</div>
	</div>

</div>

</html> 

<style>
.slider {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.slider__slides {
  position: relative;
  width: 400%;
  height: 100%;
  transition: transform 0.3s cubic-bezier(0.51, 0.92, 0.24, 1);
  will-change: transform;
}
.slider[data-pos="0"] .slider__slides {
  transform: translateX(0%);
}
.slider[data-pos="1"] .slider__slides {
  transform: translateX(-25%);
}
.slider[data-pos="2"] .slider__slides {
  transform: translateX(-50%);
}
.slider[data-pos="3"] .slider__slides {
  transform: translateX(-75%);
}
.slider__slide {
  float: left;
  width: 25%;
  height: 100%;
}
.slider__dots {
  display: flex;
  position: absolute;
  bottom: 1.5em;
  left: 50%;
  transform: translateX(-50%);
}
.slider__dot, .slider__indicator {
  display: block;
  margin: 0 0.5em;
  width: 1em;
  height: 1em;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 100px;
}
.slider__indicator {
  position: absolute;
  background: white;
  width: auto;
}
.slider__indicator--left {
  transition: left 0.3s cubic-bezier(0.51, 0.92, 0.24, 1.15), right 0.3s 0.1s cubic-bezier(0.51, 0.92, 0.24, 1.15);
}
.slider__indicator--right {
  transition: left 0.3s 0.1s cubic-bezier(0.51, 0.92, 0.24, 1.15), right 0.3s cubic-bezier(0.51, 0.92, 0.24, 1.15);
}
.slider[data-pos="0"] .slider__indicator {
  left: 0em;
  right: 6em;
}
.slider[data-pos="1"] .slider__indicator {
  left: 2em;
  right: 4em;
}
.slider[data-pos="2"] .slider__indicator {
  left: 4em;
  right: 2em;
}
.slider[data-pos="3"] .slider__indicator {
  left: 6em;
  right: 0em;
}

.center {
  display: flex;
  height: 100vh;
  justify-content: center;
  align-items: center;
  background: #333;
}

.slider {
  max-width: 600px;
  max-height: 400px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
}
.slider__slide:nth-child(1) {
  background: #309954;
}
.slider__slide:nth-child(2) {
  background: #ffbd3c;
}
.slider__slide:nth-child(3) {
  background: #f8593e;
}
.slider__slide:nth-child(4) {
  background: #4086fa;
}
</style>

<script> 
let dots = 4;
let sliderElem = document.querySelector(".slider");
let dotElems = sliderElem.querySelectorAll(".slider__dot");
let indicatorElem = sliderElem.querySelector(".slider__indicator");

Array.prototype.forEach.call(dotElems, (dotElem) => {
	dotElem.addEventListener("click", (e) => {
		let currentPos = parseInt(sliderElem.getAttribute("data-pos"));
		let newPos = parseInt(dotElem.getAttribute("data-pos"));

		let newDirection = newPos > currentPos ? "right" : "left";
		let currentDirection = newPos < currentPos ? "right" : "left";

		indicatorElem.classList.remove(`slider__indicator--${currentDirection}`);
		indicatorElem.classList.add(`slider__indicator--${newDirection}`);
		sliderElem.setAttribute("data-pos", newPos);
	});
});

</script>
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