Untitled

<!DOCTYPE html>
<html>
<body>

<div id="demo1"></div>
<p id="demo2"></p>
<p id="demo3"></p>

<script>
    let studenti = [{"Ime": "Petar", "Prezime": "Petrovic", "BrIndeksa": 179}, {"Ime": "Ana", "Prezime": "Tot", "BrIndeksa": 682}, {"Ime": "Milan", "Prezime": "Milic", "BrIndeksa": 218}];

    for (student of studenti) {
        if (student.BrIndeksa==682){
            student.Prezime="Tot-Petrović";
        }
    }

    let rbrZaBrisanje;

    for (i in studenti) {
        if (studenti[i].BrIndeksa == 179){
            rbrZaBrisanje = i;
        }
    }
    studenti.splice(rbrZaBrisanje, 1);

    studenti.push({"Ime": "Mila", "Prezime": "Milić", "BrIndeksa": 760});
    studenti.push({"Ime": "Mika", "Prezime": "Mikić", "BrIndeksa": 689});

    localStorage.setItem('studenti', JSON.stringify(studenti));
    let localStudenti = JSON.parse(localStorage.getItem('studenti'));


    for(let student of localStudenti) {
        let pasus = document.createElement("p");
        pasus.innerHTML = JSON.stringify(student);
        document.getElementById("demo1").appendChild(pasus);
    }

</script>

</body>
</html>