Angular5 does not display the data on the page after obtaining the data.

I get http data on ngOnInit (), and the data is returned in the background, but it just can"t be displayed on the page. What should I do
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Mar.12,2021

try the following command after the push statement

this.dataList=[...this.dataList]

No convenient template version

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-64f5-1e5b7d4-44b7a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e5b7d4-44b7a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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