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'Modifica di un elemento di matrice 'Questa affermazione cambia il valore del primo elemento in cars: 'var cars = ["Saab", "Volvo", "BMW"]; 'cars[0] = "Opel"; 'document.getElementById("demo").innerHTML = cars[0]; https://www.w3schools.com/js/tryit.asp?filename=tryjs_array_element_change <!DOCTYPE html> <html> <body> <h2>JavaScript Arrays</h2> <p>JavaScript array elements are accessed using numeric indexes (starting from 0).</p> <p id="demo"></p> <script> var cars = ["Saab", "Volvo", "BMW"]; cars[0] = "Opel"; document.getElementById("demo").innerHTML = cars; </script> </body> </html> |