beforeDestroy(){
console.log("scrollTop-",this.$refs.main.scroller.scrollTop)
},
the scroll bar height of ref cannot be obtained in the beforeDestroy cycle. In created, I can use a timer to get it. To find a solution, or to monitor the scroll bar height of ref, ask everyone who has encountered it to solve
. in beforeDestroy , although the instance still exists, the height of the container is already 0, so the value of the scroll bar is also 0
timer is not recommended. You can get the height in mounted , when the dom has been loaded. If you have an asynchronous data request, you should write the acquisition height in the hook after getting the data
bind the listening event of the scroll bar in mounted and record the height value of the scroll bar on the instance
beforeDestroy () {
console.log(this.scrollTopRecord)
this.$refs.main.scroller.removeEventListener('scroll', this.recordScroll)
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