add items file javascript code example

Example 1: add item to list javascript

var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.push("Kiwi"); // Fruits = ["Banana", "Orange", "Apple", "Mango", "Kiwi"];

Example 2: c# edit element in list

var index = list.FindIndex(c => c.Number == someTextBox.Text);
list[index] = new SomeClass(...);

Example 3: javascript add multiple items to array

var a = [];
    
a.push(1, 2, 3);

console.log(a);