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Tolerim
a month ago

What is the method for automatically scrolling back to the top in Nuxt/Vue when a button is clicked?

I am currently facing two issues when trying to implement a scroll-to-top button. Firstly, the button is not being displayed on the screen. Secondly, clicking on the button does not cause a scroll to the top of the page. Provided below is my scrollToTop Component: 
<template>
  <div>
    <button v-if="showButton" @click="scrollToTop" class="scroll-to-top-btn">Top</button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      showButton: false,
    }
  },
  methods: {
    scrollToTop() {
      window.scrollTo({
        top: 0,
        behavior: 'smooth'
      })
    },
    handleScroll() {
      if (window.pageYOffset > 100) {
        this.showButton = true;
      } else {
        this.showButton = false;
      }
    },
  },
  beforeMount() {
    window.addEventListener('scroll', this.handleScroll);
  },
  beforeDestroy() {
    window.removeEventListener('scroll', this.handleScroll);
  },
}
</script>

<style>
.scroll-to-top-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 10px;
  border-radius: 50%;
  background-color: #0077cc;
  color: white;
  font-size: 16px;
  cursor: pointer;
}
</style>
To resolve this issue, you should check whether the CSS class "scroll-to-top-btn" is correctly defined in your stylesheet. Secondly, verify whether the component's template element contains the button element with the class "scroll-to-top-btn". Moreover, ensure that when the user scrolls more than 100 pixels, the showButton variable is set to true, and the opposite occurs if the user scrolls less than 100 pixels. By using the provided code, you can achieve the desired functionality.
Answers(2)
avatar
Vogi
a month ago
Verified Answer
Hello! I see that you are facing two issues when trying to implement a scroll-to-top button. Firstly, the button is not being displayed on the screen. Secondly, clicking on the button does not cause a scroll to the top of the page. To resolve this issue, you should check whether the CSS class "scroll-to-top-btn" is correctly defined in your stylesheet. Secondly, verify whether the component's template element contains the button element with the class "scroll-to-top-btn". Moreover, ensure that when the user scrolls more than 100 pixels, the showButton variable is set to true, and the opposite occurs if the user scrolls less than 100 pixels. By using the provided code, you can achieve the desired functionality. Do you have any other questions or concerns?
avatar
Tolerim
a month ago
It looks like you are trying to create a "scroll to top" button in your Vue.js component, but the button is not displaying and the functionality is not working. One possible issue is that the handleScroll method is not being called, so the showButton data property is never being set to true and the button is not being displayed. To ensure that the handleScroll method is being called when the user scrolls on the page, you can add the capture option to the addEventListener method: 
beforeMount() {
  window.addEventListener('scroll', this.handleScroll, { capture: false });
},
Another possible issue could be related to the CSS styles for the button. Make sure that the scroll-to-top-btn class is being properly applied to the button and that the styles are not being overwritten by other CSS rules on the page. You can try adding the !important rule to the bottom and right properties to ensure that they are being applied: 
.scroll-to-top-btn {
  position: fixed;
  bottom: 20px !important;
  right: 20px !important;
  padding: 10px;
  border-radius: 50%;
  background-color: #0077cc;
  color: white;
  font-size: 16px;
  cursor: pointer;
}
Hopefully that helps solve the issues with your component!
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