Vue's question about console (this.xx)

   


 as shown in figure 


  this  and  this.ws  both output normally, 
 but the problem is that in the output of  this , you don"t see  ws ? 
 what is the reason for this? Why doesn"t this  ws  be shown? Where does he exist 


 contact with JS is not in depth, so I can"t understand the situation. I hope I can give you some advice 
.
Console javascript vue.js
May.24,2022

js has its own member objects and properties inherited from the prototype chain. In this case, this.ws should be in prototype , that is, on the prototype chain, click prototype below to find it.

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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-64f5-1b362c7-4057d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b362c7-4057d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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