In programming, an array is one of the simplest ways to store and access a data set. As different programming languages handle arrays differently, it is sometimes necessary to understand how to move (or pass) those data from one language to another.
- Using a separator.
- Using JSP
How to Pass an Array Using a Separator
The first way to pass an array is to use a separator, which is a character that helps read a Java array and then transform it with the
How to Pass an Array Using JSP
The second option for passing an array uses JSP, short for Java Server Pages. JSP is a system that requires a server that can host code and provide dynamic web content.
While on a JSP page, coders can use the
Understanding the Argument for Passing the Array
No matter which method programmers use for passing their arrays, they’ll want to understand how their programs move the array forward. Java programs, for example, can include a
thiskeyword that can help remove confusion between class attributes and parameters with the same name.
The next step is to use an
apply() parameter surrounding what arguments or data must be met for the array to go through. The
apply()content can include two different parameters. The first may be “null,” (an array placeholder that has no value assigned to it) and the second can include the details necessary for allowing the array to progress.
Here is a code example from the Mozilla Foundation of how an
apply() parameter can be set up and used to determine which numbers from an array are the largest and the smallest:
const numbers = [5, 6, 2, 3, 7]; const max = Math.max.apply(null, numbers); console.log(max); // Expected output: 7 const min = Math.min.apply(null, numbers); console.log(min); // Expected output: 2
apply() parameter will call a function that includes the arguments necessary for passing the content. The arguments must be clear enough to allow the program to move the data forward, allowing the content to move into a new array.
Passing an Array With No Arguments
There might be times when there are no arguments inside an array. In this situation, the spread syntax can be used to pass the array. Programmers can simply create a function using the spread syntax to complete any arguments that appear in the function, including those cases in which there are no arguments.
Experiment With Passing Arrays