https://www.wix.com/velo/reference/$w/repeater/foreachitem
This helps you to ‘access’ the stuff INSIDE repeater
$w("#myRepeater").forEachItem( ($item, itemData, index) => {
let repeatedElement = $item("#repeatedElement");
let nonRepeatedElement = $w("#nonRepeatedElement");
let itemDataValue = itemData.someProperty;
let isEvenItem = index % 2 === 0;
} );