Functional Programming
Functional programming plays an essential role in programming, and it has been adopted by almost all languages.
Functions help separating specific tasks from the main code. Any function has parameters which are the names listed in its definition. Those parameters are initialized to the values of the arguments supplied. In Other words, arguments are the variables given to the function for execution.
Click on this link to learn more about difference between parameters and arguments.
Arguments in Javascript
In Javascript, an Arguments object is a local object that can be accessed inside a function. It is an array-like object which contains the parameters passed to the function. Arguments object act much like an array, in that it can be indexed and iterated. However, the major difference between them is that an Arguments object has no methods and has non-numeric properties that other array-like objects do not.
- Determine the number of arguments using the length property :
- Modify the arguments
Conclusion
In summary, an Arguments object is an array-like object in JavaScript which is used to access, store, and modify arguments when calling a function. It is a helpful tool for working with parameters passed to functions and can also be used to store the state of local variables when accessing recursive functions. As a result, it is an invaluable part of the JavaScript language’s built-in library and should be utilized whenever possible.
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