CODEWITHSUNDEEP
javascripthovertoggle
bobolefou
bobolefou

Reputation: 11

Hover and toggle in basic javascript

I have the following JavaScript code for a simple hover which uses JQuery:

$('.product_img_link').hover(function(){
  $(this).prev('.hoverProduct').show();
},function(){
  $(this).prev('.hoverProduct').hide();
});

(finds the previous div with class hoverProduct, and displays it on hover and hides it on mouse out).

How can I write this snippet without JQuery, using only plain JavaScript?

Upvotes: 1

Views: 1538

Answers (1)

elclanrs
elclanrs

Reputation: 94101

Something like this:

var links = document.querySelectorAll('.product_img_link');

[].forEach.call(links, function(link) {
  var prev = link.previousSibling;
  link.addEventListener('mouseover', function() {
    prev.style.display == 'block';
  });
  link.addEventListener('mouseout', function() {
    prev.style.display == 'none';
  });
});

In jQuery prev with a selector gets the previous element only if it matches the selector. If you want the same behavior in plain JS you can test like this:

...
var prev = link.previousSibling;
var hasClass = /\bhoverProduct\b/.test(prev.className);

if (hasClass) {
  // events
}
...

Upvotes: 5

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