Vue.js will trigger the updated() method only when a particular array undergoes changes

Question

Vue.js will trigger the updated() method only when a particular array undergoes changes

Working on a chat feature and looking for a way to automatically scroll to the end of the conversation when new messages are added.

The current solution involving the updated() function works well, but there's a complication with a vue-timepicker component that updates every second, preventing scrolling.

Any suggestions on how to adjust the implementation so that the $nextTick() only triggers after changes in the message array?

updated() {
        this.$nextTick(() => this.scrollToBottom());
    },

javascript vue.js vuejs2 vue-component

Answer 1

Answer №1

To accurately track the changing property, you must keep a close eye on it

watch: {
  value(val) {
    // executes when value changes
    this.$nextTick(() => this.scrollToBottom());
  },
},

If you want to learn more about this topic, you can visit https://v2.vuejs.org/v2/api/#watch.

Please note that using updated for this purpose is not recommended:

To respond to changes in state, it's usually better to use a computed property or watcher instead.

https://v2.vuejs.org/v2/api/#updated

Answer 2

To accurately track the changing property, you must keep a close eye on it

watch: {
  value(val) {
    // executes when value changes
    this.$nextTick(() => this.scrollToBottom());
  },
},

If you want to learn more about this topic, you can visit https://v2.vuejs.org/v2/api/#watch.

Please note that using updated for this purpose is not recommended:

To respond to changes in state, it's usually better to use a computed property or watcher instead.

https://v2.vuejs.org/v2/api/#updated

Answer 3

Answer №2

If you want to monitor changes in an array, you can use the watchAPI like this:

watch:{
    arrName:{
      handler(newVal,oldVal){
          this.scrollToBottom()
      },
     deep:true

   }

}

Answer 4

If you want to monitor changes in an array, you can use the watchAPI like this:

watch:{
    arrName:{
      handler(newVal,oldVal){
          this.scrollToBottom()
      },
     deep:true

   }

}

Vue.js will trigger the updated() method only when a particular array undergoes changes

Answer №1

Answer №2

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