vue清除定时器

方法一: 

1、data中定义timer变量

  data() {
    return { timer: null }
  }

2、在使用定时器时将定时器赋值给timer

  methods: {
    toggleImg() {
      this.timer = setInterval(() => {
        this.currentIndex++
        if (this.currentIndex === this.list.length) this.currentIndex = 0
      }, 1000)
    }
  }

3、清除定时器

  beforeDestroy() {
    clearInterval(this.timer)
    this.timer = null
  }

方法二:

在定义定时器的方法或生命周期中通过变量timer接收,然后在方法的后面销毁该定时器,这样写的好处是便于维护

  methods: {
    toggleImg() {
      const timer = setInterval(() => {
        this.currentIndex++
        if (this.currentIndex === this.list.length) this.currentIndex = 0
      }, 1000)
      this.$once('hook:beforeDestroy', () => {
        clearInterval(timer)
        timer = null
      })
    }
  }
原文地址:https://www.cnblogs.com/wuqilang/p/15203453.html