How to modify javascript for multiple instances of an image gallery

JavaScript
1

I discovered this image modal on w3schools and I would like to modify the javascript so that i can have multiple images. My javascript knowledge is limited so any help will be greatly appreciated. Here is the link to the modal image gallery. https://www.w3schools.com/howto/howto_css_modal_images.asp

I thought that adding the following code and changing the variable name would be all that i needed to do but I was wrong. It

var img2 = document.getElementById('myImg');
var modalImg2 = document.getElementById("img01");
var captionText2 = document.getElementById("caption");
img.onclick = function(){
    modal.style.display = "block";
    modalImg.src = this.src;
    captionText.innerHTML = this.alt;
}
2

Do you want to change the images with carousel option or insert all the images in the modal window?

3

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