Javascript : extract data from web app

function getdetail(){
    //document.body.style.zoom = 0.1
    
    const table = document.getElementsByClassName("ag-root ag-unselectable ag-layout-auto-height")[0];
    
    const header = table.querySelectorAll("div.ag-header-viewport")[0].innerText.split("\n");
   
    const customerdetail = table.querySelectorAll("div.ag-row");
    const databalance = [];
    customerdetail.forEach(row => databalance.push([row.innerText.split("\n")]));
    
    databalance.forEach(row =>{
        const custacc = row[1]; // account number 
        const custname = row[0]; // name
        const custcode = row[9] // code
        const custavaliable_units = row[10]; // avaliable balance units
        const custavaliable_price = row[11]; // avaliable balance thb
    })
    //document.body.style.zoom = 1.0;
}