Is there a way to set the description for images in a wix pro gallery?

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It mostly worked, but I have 2 questions!
I see that in the console WHEN my code says:

let myVariable = $w('#gallery1').items

$w.onReady(function(){
    
    let items = $w("#gallery1").items;
    console.log("ITEMS: ", items);

    let variableNumber = $w("#gallery1").items; 
    for(var i = 0; i < 12; i++);

let myNewDescription = "XXXXXX";
    console.log("RESULT-Description: ",  myNewDescription);

items[0].description = myNewDescription;

    $w("#gallery1").items = items;
    console.log("RESULTS: ", $w("#gallery1").items)
});

but NOT when it says:

let myVariable = $w('#gallery1').items

$w.onReady(function(){
    
    let items = $w("#gallery1").items;
    console.log("ITEMS: ", items);

    let variableNumber = $w("#gallery1").items; 
    for(var i = 0; i < variableNumber.length; i++);

let myNewDescription = "XXXXXX";
    console.log("RESULT-Description: ",  myNewDescription);

items[i].description = myNewDescription;

    $w("#gallery1").items = items;
    console.log("RESULTS: ", $w("#gallery1").items)
});

but also, and more importantly, is there a way to have it also appear on the front end of the website when i look at the gallery?