change image on hover js with code examples

Change Image on Hover JS with Code Examples

When designing a website, one of the ways to improve its aesthetics is by adding interactive elements. Hover effects are one of the ways of achieving this, and they are becoming increasingly popular. Hover effects are used to create a change in the appearance or behavior when a user hovers over an element. In this article, we will be discussing change image on hover using JavaScript, and we will provide some examples to make it easier to understand.

What is change image on hover?

The change image on hover effect is a popular technique used to change an image on a web page when a user hovers over it. This can be used to bring attention to important information or to provide a more interactive user experience.

There are several ways to achieve the change image on hover effect, and one of the easiest ways to do so is by using JavaScript. The JavaScript code can be used to change the image on hover by manipulating the image source.

How to change image on hover using JavaScript

To change the image on hover, the first step is to select the image element and listen for the hover event. Once the hover event is detected, the script will change the image's source attribute to the desired hover image. Here is the basic structure of the JavaScript code for changing images on hover:

const img = document.querySelector('img');
const newImgSrc = 'hover.jpg';

img.addEventListener('mouseover', function() {
  this.src = newImgSrc;
});

img.addEventListener('mouseout', function() {
  this.src = 'original.jpg';
});

In the above code, we first select the image element using document.querySelector(). We then create a constant variable called newImgSrc, which will hold the source path of the hover image.

Next, we add an event listener to the image element, listening for the mouseover event. When the event is detected, the anonymous function inside the event listener is executed, and the this keyword refers to the image element. Inside the function, we set the src attribute of the image element to the newImgSrc constant variable, which holds the path to the hover image.

We also add an event listener for the mouseout event, which is executed when the user moves the mouse out of the image. The src attribute is then set to the original image source, which is specified in the HTML code.

Examples of change image on hover

Let's take a look at some code examples of changing images on hover using JavaScript.

Example 1: Change image on hover with fade effect

<div class="image">
  <img src="original.jpg" alt="Original Image">
  <img src="hover.jpg" alt="Hover Image" class="hover">
</div>

.image {
  position: relative;
}

.hover {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  transition: opacity .5s ease-in-out;
}

.image:hover .hover {
  opacity: 1;
}

const img = document.querySelector('.image img');

img.addEventListener('mouseover', function() {
  this.src = 'hover.jpg';
});

img.addEventListener('mouseout', function() {
  this.src = 'original.jpg';
});

In the above example, we are using two images, one as the original image and the other as the hover image. We also added a CSS class called hover to the hover image so that it can be positioned above the original image.

Next, we use CSS to set the hover image to have an opacity of 0 and to have a transition effect. We use the :hover selector to set the opacity to 1 when the user hovers over the image div element.

Finally, we use JavaScript to listen for the mouseover and mouseout events, and we change the image src attribute to the hover image and original image, respectively.

Example 2: Change image on hover with scale effect

<div class="image">
  <img src="original.jpg" alt="Original Image">
  <img src="hover.jpg" alt="Hover Image" class="hover">
</div>

.image {
  position: relative;
}

.hover {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  transition: transform .3s ease-in-out;
  transform: scale(1.2);
}

.image:hover .hover {
  opacity: 1;
  transform: scale(1);
}

const img = document.querySelector('.image img');

img.addEventListener('mouseover', function() {
  this.src = 'hover.jpg';
});

img.addEventListener('mouseout', function() {
  this.src = 'original.jpg';
});

In this example, we are using the same HTML and JavaScript as in example 1, but we are using a different CSS effect to create a scaling effect.

We once again use two images, one as the original and one as the hover. We use CSS to position the hover image above the original image and set its opacity to 0. We set a transform property to scale the hover image to 1.2 times its original size.

Next, we use the :hover selector to set the opacity property to 1 and set the transform property to scale the image back to its original size.

Conclusion

Change image on hover continues to be a popular technique for creating interactive effects and improving website aesthetics. It is relatively easy to implement using JavaScript, and there are many ways to create hover effects using CSS.

In this article, we discussed how to change image on hover using JavaScript and provided two examples with different hover effects. We hope this article has been helpful in providing you with some ideas for your next web development project.

I can write more about the previous topics.

Let's start with the topic "Change Image on Hover JS with Code Examples".

In addition to the examples provided in the article, there are other ways to achieve the change image on hover effect using JavaScript. For example, you could use data-* attributes to store the image source paths, then use the getAttribute() and setAttribute() methods to manipulate the src attribute.

Here is an example of using data-* attributes:

<div class="image">
  <img src="original.jpg" alt="Original Image" data-hover="hover.jpg">
</div>

const img = document.querySelector('.image img');

img.addEventListener('mouseover', function() {
  this.setAttribute('src', this.getAttribute('data-hover'));
});

img.addEventListener('mouseout', function() {
  this.setAttribute('src', 'original.jpg');
});

In this example, we are using a data-hover attribute to store the path to the hover image. We then use the getAttribute() and setAttribute() methods to change the src attribute on hover and mouse out.

Another way to achieve the hover image effect is by creating an image sprite. An image sprite is a large image containing all the separate images, and this can be used to create a hover effect.

<div class="image">
  <img src="sprite.jpg" alt="Sprite Image">
</div>

.image {
  display: inline-block;
  width: 100px;
  height: 100px;
  background: url(sprite.jpg) 0 0;
}

.image:hover {
  background-position: -100px 0;
}

In this example, we are using an image sprite that contains two images, the original image and the hover image. We use the background property of the CSS to set the sprite image as the background of the image div and position it to show the original image (background: url(sprite.jpg) 0 0;).

On hover, we use the background-position property to show the hover image by positioning the background image to -100px from the left (background-position: -100px 0;).

Overall, there are many ways to achieve the change image on hover effect, and choosing the right approach depends on the specific requirements of your project.

Next, let's talk about the topic "5 Best Responsive Frameworks for Web Development".

In addition to the frameworks listed in the article (Bootstrap, Foundation, Bulma, Materialize, and Tailwind), there are other responsive frameworks that are popular with web developers.

One such framework is Semantic UI. Semantic UI is a modern framework that aims to make web development more intuitive and easier to understand. It uses a non-technical language for class names, making it easier to understand and use for both developers and non-developers.

Another popular framework is UIkit, which is a lightweight and modular framework that is easy to customize and extend. It includes a variety of components such as navigation bars, form controls, and tooltips.

A newer framework that has been gaining popularity among developers is Vuetify. Vuetify is a Material Design component framework that is built using Vue.js. It includes a wide variety of pre-built components and is optimized for building responsive and mobile-first web applications.

Finally, there is Bulma Extension, which is an open-source project that adds a variety of new components and functionality to Bulma. Bulma Extension includes over 85 different responsive components, including calendars, carousels, sliders, and more.

In conclusion, there are many responsive frameworks available for web development, each with their own unique features and benefits. Choosing the right framework depends on the specific requirements of your project and the development tools and technologies that you prefer to use.

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