JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<div class="camera_wrap slider_wrapp animate_5">
		<div data-src="img/portfolio-images/1_port.jpg"></div>
		<div data-src="img/portfolio-images/2_port.jpg"></div>
		<div data-src="img/portfolio-images/3_port.jpg"></div>
</div>

<button id="landscape">landscape</button>

JavaScript

$('#landscape').click(function(){
   $('.camera_wrap > div').each(function(){
			$(this).data("src", "img/portfolio-images/arch");
      console.log($(this).data("src"));
	 });
});