So actually what Im trying to do is creating a counter, which will show the number of the Rows of a Database. (On my Website a kind of counter for messages from people)

So the ID of the Database is like you can see the jobapplication07 and I already imported the wix data.
But everytime the textbox(#text12) just still show 0 even if there are already 24 Rows. I hope someone can help me out with that 
Your first MISTAKE is the ----> # <------
RIGHT:
wixData.query('HereYourDatabaseID')
Complete-Code:
import wixData from 'wix-data';
$w.onReady(()=> {
wixData.query('HereYourDatabaseID')
.find()
.then((res)=>{let items = res.items;
if (items.length>0) {console.log("Some items found!!!");
console.log(items);
console.log("First-Item: ", items[0]);
console.log("First-Item-Title: ", items[0].title);
$w('#text12').text = items.length;
}
else {console.log("No items found!!!");}
})
.catch((err)=>{console.log(err);});
});

Getting this message now
(The text box ID is changed aswell so dont mind that)
!SOLVED!
Nevermind I fixed it. Just changed the items length variable to a string. Thanks for your help Velo Ninja!!! Appreciate it bro 