Why didn't this.$nextTick work?

print console.log (this.$refs.vuetree) in mounted, whether it is in the this.$nextTick callback function or not,

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this.$refs.vuetree.setCurrentKey(100)debuggerdomthis.$nextTick
click:

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kneel down and thank you.

Mar.09,2021

there is something wrong with the this.$nextTick of this pot. There is something wrong with the code of this.$refs.vuetree.setCurrentKey. You should check the reason why this.$refs.vuetree.setCurrentKey (100) is invalid when you use Element.ui.


  1. find out the execution time of functions executed in mounted;
  2. if there is no call in this.$nextTick, it may be that dom is not finished rendering; however, the official website also says that there is no guarantee that it will be triggered after rendering.

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I suspect that this has changed. Try changing the arrow function


you try to turn $nextTick into setTimeout. Try

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explain
browser for performance, console.log is not Synchronize's. At that moment, it only takes a reference to the object
, that is, the component object is not necessarily created the moment you print it, and I don't know how long it has been since it was printed out. So you can print out the component object
console.log (JSON.parse (JSON.string (vueTree) is the correct
) as for the solution, the setTimeOut upstairs can do it, and recursively determine whether the vueTree exists in nextTick to operate

.
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b2bafd-2bae2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2bafd-2bae2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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