Merging of array objects

let a = [{name:"", age:"", sex:""}, {name:"", age:"", sex:""}, {name:"", age:"", sex:""}];
let b = [{name:"", age:"", sex:"}, {name:"", age:"", sex:""}, {name:"", age:"", sex:""}];

what method is used to merge two arrays? Get c = [{name:"", age:"", sex:""}, {name:", age:"", sex:""}];

Mar.14,2021

    let a = [{name: '', age: '', sex: ''},{name: '', age: '', sex: ''},{name: '', age: '', sex: ''}];
    let b=[{name: '', age: '', sex: ''},{name: '', age: '', sex: ''},{name: '', age: '', sex: ''}];
    let  c=a.concat(b)
    console.log(c)

c=[...a,...b]

a.concat (b)

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-64f5-1b3ef8b-2c45d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3ef8b-2c45d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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