How to put the data returned three times in angular4 into an array?

Feb.28,2021

this.recordList.push(...v.recordList)

this.serveice.request().map(response => response.json()).subscribe(v=>{});

is it OK to remove this.recordList = null ? Every time the initialization data is cleared, the recordList is also cleared, and the white push is

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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-64f5-1be4d3d-39ad7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1be4d3d-39ad7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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