How to push a new object to an array of objects using a from input in JavaScript?

As the title says, i have an array of objects:

let bookObjects = [
        {
            title: "Defender With A Goal",
        },
        {
            title: "Pirate Of The End",
        },
        {
            title: "Kings Of Rainbows",
        },
        {
            title: "Traitors Of The Forsaken",
        },
        {
            title: "Enemies And Invaders",
        },
    ];

And i have a form:

<form name="myform" action="" method="GET">
    Add new element to the table: <br>
    <input type="text" name="inputbox" value="">
    <p>
        <input type="button" name="button" value="Submit" onClick="addNewObjet(this.form)">
    </p>
</form>

And a function that should add a new object:

addNewObjet = (form) => {
        let newTitle = form.inputbox.value; //inputbox is the name of the input

        bookObjects.push(
            {
                title: newTitle,
            },
        );
    }

If i try to push into bookObjects without the input it does work, but with the form it doesn’t.

>Solution :

let bookObjects = [
        {
            title: "Defender With A Goal",
        },
        {
            title: "Pirate Of The End",
        },
        {
            title: "Kings Of Rainbows",
        },
        {
            title: "Traitors Of The Forsaken",
        },
        {
            title: "Enemies And Invaders",
        },
    ];
    
    addNewObjet = (form) => {
        let newTitle = form.inputbox.value; //inputbox is the name of the input

        bookObjects.push(
            {
                title: newTitle,
            },
        );
        
      var table = document.getElementById("tbl");
      table.innerHTML = "";
      
      bookObjects.forEach(b => {
      var row = table.insertRow(0);

       
      var cell1 = row.insertCell(0);
      var cell2 = row.insertCell(1);

       
      cell1.innerHTML = b.title;
      })

     
      
   
    }
        
      var table = document.getElementById("tbl");

     
      var row = table.insertRow(0);

       
      var cell1 = row.insertCell(0);
      var cell2 = row.insertCell(1);

       
      cell1.innerHTML = newTitle;
   
    }

This puts the input into a table and this seems to work.