What exactly does this way of writing mean? Let {afort b} = this.data

this.data is an object. How is the let {aforme b} = this.data written exactly? you"d better give an example. Thank you

.
Nov.17,2021

this way of writing is equivalent to:

let data = {a: 1, b: 2}
let {a, b} = data
console.log(a, b) // 1 2

object key must be consistent before

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-64f5-1e4c033-44e8c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e4c033-44e8c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?