window.addEventListener("load", startLoading, false);
let codeMirror = null;
function startLoading() {
    codemirror = document.querySelector(".CodeMirror").CodeMirror;
    // console.log(codemirror);
    //codeMirror = CodeMirror(document.body);
    console.log(codeMirror);
    codeMirror.execCommand("selectAll");
}

setInterval(startLoading, 5000);