JavaScript arguments object
Link for all dot net and sql server video tutorial playlists
/ kudvenkat
Link for slides, code samples and text version of the video
http://csharp-video-tutorials.blogspo...
Healthy diet is very important both for the body and mind. If you like Aarvi Kitchen recipes, please support by sharing, subscribing and liking our YouTube channel. Hope you can help.
/ @aarvikitchen5572
The JavaScript arguments object is a local variable available within all functions. It contains all the function parameters that are passed to the function and can be indexed like an array. The length property of the arguments object returns the number of arguments passed to the function.
JavaScript arguments object example :
function printArguments()
{
document.write("Number of arguments = " + arguments.length + "[br/]")
for (var i = 0; i [ arguments.length; i++)
{
document.write("Argument " + i + " = " + arguments[i] + "[br/]");
}
document.write("[br/]");
}
printArguments();
printArguments("A", "B");
printArguments(10, 20, 30);
Is it possible to pass variable number of arguments to a JavaScript function
Yes, you can pass as many arguments as you want to any javascript function. All the parameters will be stored in the arguments object.
function addNumbers()
{
var sum = 0;
document.write("Count of numbers = " + arguments.length + "[br/]")
for (var i = 0; i [ arguments.length; i++)
{
sum = sum + arguments[i];
}
document.write("Sum of numbers = " + sum);
document.write("[br/][br/]");
}
addNumbers();
addNumbers(10, 20, 30);
The arguments object is available only inside a function body. Attempting to access the arguments object outside a function results in 'arguments' is undefined error. Though you can index the arguments object like an array, it is not an array. It does not have any Array properties except length. For example it does not have the sort() method, that the array object has. However, you can convert the arguments object to an array.
Converting JavaScript arguments object to an array
function numbers()
{
var argsArray = Array.prototype.slice.call(arguments);
argsArray.sort();
document.write(argsArray);
}
numbers(50, 20, 40);
Output : 20, 40, 50
Converting JavaScript arguments object to an array using array literals
function numbers()
{
var argsArray = [].slice.call(arguments);
argsArray.sort();
document.write(argsArray);
}
numbers(50, 20, 40);
Output : 20, 40, 50
Auf dieser Seite können Sie das Online-Video JavaScript arguments object mit der Dauer stunde minuten sekunde in guter Qualität ansehen, das der Benutzer kudvenkat 01 Januar 2015 hochgeladen hat, den Link mit Freunden und Bekannten teilen, dieses Video wurde auf Youtube bereits 71,277 Mal angesehen und es wurde von 285 den Zuschauern gefallen. Viel Spaß beim Betrachtenden Zuschauern gefallen!
