ObjectiveRecently in the reading JavaScript related knowledge point, saw a foreigner of a JavaScript for WEB developers, encountered a knowledge blind spot, feel that the foreigner writes very clearly very thorough, the record to deepen the
Functions can also be called using keyword arguments of the form kwarg=value. For instance, the following function:DefParrot(Voltage,State=' A stiff ',Action=' Voom ',Type= ' Norwegian Blue ' ): print ( "--this parrot wouldn ' t" actionend= ") print
JS and PHP in the function of a bit different, php-shaped participation in the number of arguments to match, and JS flexible, can be arbitrarily transmitted parameters, the actual parameter is less than formal parameters or more will not error. More
We are looking for ways to tune JavaScript so that we can do some real functional programming. To do this, it is necessary to fully understand function calls and function prototypes. We are looking for ways to tune JavaScript so that we can do some
Before talking about the above concepts, let's first talk about javas.Implicit parameters of functions in functions:
Arguments:
Arguments this object represents the function being executed and the parameters that call its function.
[Function.]
Any function contains an arguments object, which is similar to an array. You can use a subscript to access data members of arguments.
Arguments is mainly used to save the actual parameter data of the called function.
For example:Function Test (){
This article mainly introduces the JavaScript built-in object arguments, the example explains arguments is how to use, needs the friend to be possible to refer to under One, what is arguments arguments is a built-in object in JavaScript, it is
One, what is argumentsArguments is a built-in object in JavaScript, it's quirky and often overlooked, but it's really important. All the major JS libraries use the arguments object. So agruments objects must be familiar to JavaScript programmers.All
In each function, there is a variable named arguments, which holds the parameters of the current invocation in an array-like form. And it's not actually an array, and using the typeof arguments statement tries to return "object", so it can't use a
In Javascript Functions, there is an array object of classes named arguments. It looks so strange and the name is not passed, but many Javascript libraries use its powerful functions. Therefore, every Javascript programmer must be familiar with its
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.