Dynamic data in Overleaf

dynamic_overleaf.js

let ace = document.querySelector(".ace_editor");
// ace.env.editor.session.getLength(); // number of lines

let previousRow = 0

let r = ace.env.editor.find('\\get\{(.*?)\}\{(.*?)\}',{
    backwards: false,
    wrap: false,
    caseSensitive: false,
    wholeWord: false,
    regExp: true
});

    while (r?.end.row >= previousRow){

        previousRow = r.end.row

        const original = ace.env.editor.getSelectedText();
        const values = original.match(/\{.*?\}/g)
        const jsonvalue = await fetch(values[0].substring(1, values[0].length-1))
        const cell = await jsonvalue.json()
        const newValue = parseFloat(cell.entry.content.$t)
        const range = ace.env.editor.selection.getRange();
        ace.env.editor.session.replace(range, `\get${values[0]}{${newValue}}`);

        r = ace.env.editor.find('\\get\{(.*?)\}\{(.*?)\}',{
                backwards: false,
                wrap: false,
                caseSensitive: false,
                wholeWord: false,
                regExp: true
            });

    }