I have a funciton called getSpidFromOvr()
const mysql = require('mysql2/promise');
async function gopher(param1, param2){
let param3 = parseInt(param1 - ovrUpgrade[param2 - 1]);
const db = await mysql.createConnection({
host: 'localhost',
user: 'root',
database: 'default_schema'
});
db.connect();
let res = await db.query({
sql: "SELECT `id` FROM `players` WHERE `param` = ? LIMIT 1",
values: [param3]
});
db.end();
return await res;
}
which I call in my main()
function,
function main(){
// First, get the ovr
gopher(101, 5)
.then((res) => {
let row = res[0]; // [ TextRow { id: 100 } ]
console.log(row.id); // Returns undefined
})
}
Why is it that row
returns a valid object (using typeof row
returns object
) but when I try to access the element id
of row
, it returns undefined
?
Figured it out. Instead of doing
res[0].id
I did
res[0][0].id
Certainly a bit weird since I was able to call res[0].id
if I were to use the callback function, but hope this helps anyone who comes across this issue.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.