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' Array.lastIndexOf()e' uguale a Array.indexOf(), ma cerca dalla fine dell'array.
'Esempio 'Cerca un array per l'elemento "Apple": 'var fruits = ["Apple", "Orange", "Apple", "Mango"]; 'var a = fruits.lastIndexOf("Apple"); ' Apple is found in position 3 https://www.w3schools.com/js/tryit.asp?filename=tryjs_array_lastindexof <!DOCTYPE html> <html> <body> <h2>JavaScript Array.lastIndexOf()</h2> <p id="demo"></p> <script> var fruits = ["Apple", "Orange", "Apple", "Mango"]; var a = fruits.lastIndexOf("Apple"); document.getElementById("demo").innerHTML = "Apple is found in position " + (a + 1); </script> <p>The lastIndexOf() does not work in Internet Explorer 8 and earlier versions.</p> </body> </html> |