What is the Vue special effects code?

Vue.js is a progressive framework for building user interfaces. It uses some useful special effects code to improve user experience. In this article, we will learn some useful Vue effect codes to help you choose the most suitable effect code for you from many effects.

1. Transition effects

Transition effects can make some elements in your application smoothly switch between different states. Vue.js provides a set of built-in transition class names for triggering transition animations when elements are inserted, updated, or deleted. Here is a simple example:

<transition name="fade">
  <div v-if="show">Hello, World!</div>
</transition>

.fade-enter-active,
.fade-leave-active {
  transition: opacity 0.5s;
}
.fade-enter,
.fade-leave-to {
  opacity: 0;
}

In the above code, fade is the specified transition name. v-if="show" Used to control the appearance and disappearance of elements. We use the fade-enter-active and fade-leave-active class names to specify the style when the element transitions. Also, the fade-enter and fade-leave-to class names are used to specify styles for the initial and final states of the element. These class names are automatically applied when elements are inserted, updated, or deleted. The class name can be customized, it just needs to be consistent to run the transition effect.

2. Route animation

Route animation can enhance the user experience and make users feel that their interactions in the application are smooth. Vue Router has a first-class route switching API, which makes it easy for us to implement some basic animation effects. The following is a simple example:

<router-view class="view"></router-view>

.router-enter-active,
.router-leave-active {
  transition: opacity 0.5s;
}
.router-enter,
.router-leave-to {
  opacity: 0;
  position: absolute;
  width: 100%;
  transform: translateX(100%);
}

In the above code, we can use the same class name as the transition to achieve the routing switching effect. We can use router-enter and router-leave-to to position the entry and exit positions of the element and set the transparency to 0. Finally, define the entry and exit transitions for the element using router-enter-active and router-leave-active. This will be applied to animations entering or leaving the page.

3. Mouseover effects

Mouseover effects can attract users’ attention and make page interaction more interesting. Vue.js can achieve this effect using the @mouseover and @mouseleave event handlers. Here is a simple example:

<div class="box" @mouseover="hover = true" @mouseleave="hover = false">
  <div v-if="hover" class="overlay"></div>
  <img src="image.jpg">
</div>

.box {
  position: relative;
}
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
}
.overlay {
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}
.box:hover .overlay {
  opacity: 1;
}

In the above code, we use the @mouseover and @mouseleave event handlers to control the appearance of the mask layer and disappear. For the mask layer style, we used a background color set to translucent black. Finally, we use the opacity property to control the fade effect of the mask layer on mouseover.

4. Scrolling parallax effect

The scrolling parallax effect can enhance the user's feeling and make using the page more interesting. Vue.js can use the window.scrollY property to achieve this effect. Here is a simple example:

<div class="parallax"></div>

.parallax {
  background-image: url(image.jpg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  height: 100vh;
  transform-origin: center bottom;
  transform: translate3d(0, 0, 0);
}

document.addEventListener("scroll", () => {
  const parallax = document.querySelector(".parallax");
  parallax.style.transform = `translate3d(0, ${window.scrollY / 2}px, 0)`;
});

In the above code, we defined the background image using the background-image attribute. We also use the transform attribute and the transform-origin attribute to define the animation effect of the element. Finally, we use the window.scrollY property to control the scrolling effect of the element.

Summary

In this article, we learned some useful Vue effects code. These special effects codes can make your application more dynamic and enhance the user experience. They can be used in many places, such as transition effects, route switching, mouseover and scrolling parallax effects, and more. When implementing these special effects codes, you should prioritize the user experience rather than focusing too much on the complexity of the code.

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