Why install react ":" ^ 16.7.0-alpha.0, always report an error

import React, {useState} from "react";
always shows undefined

Apr.06,2022

Information is too small to judge

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-64f5-1e632f1-45a23.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e632f1-45a23.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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