How to highlight text in repeater search results

EXEMPLE:

$w.onReady(()=>{
    $w('input1').onChange(()=>{        
        let searchWord = $w('#input1').value;
        console.log(searchWord);
        let str = $w('#text1').text;
        console.log(str);
        let myNewStr = str.replace(searchWord, `<mark>${searchWord}</mark>`);
        console.log(myNewStr);
        $w("#text1").html=myNewStr;
    });
});