How do I create an array in JavaScript?

Creating arrays in JavaScript is easy with the array literal notation. It consists of two square brackets that wrap optional array elements separated by a comma. Array elements can be any type, including number, string, Boolean, null, undefined, object, function, regular expression and other arrays.

How do I reverse a string in JavaScript?

The split() method splits a String object into an array of string by separating the string into sub strings. The reverse() method reverses an array in place. The first array element becomes the last and the last becomes the first. The join() method joins all elements of an array into a string.

How to read a file into string in Java?

Java read file to string using Files class We can use Files utility class to read all the file content to string in a single line of code. String content = new String (Files.readAllBytes (Paths.get (fileName))); Read file to String using Scanner class

What is a byte array in Java?

In general Java terminology, an empty byte array is a byte array with length zero, and can be created with the Java expression new byte[0].

What are the methods of array in JavaScript?

In JavaScript, the array data type consists of a list of elements. There are many useful built-in methods available for JavaScript developers to work with arrays. Methods that modify the original array are known as mutator methods, and methods that return a new value or representation are known as accessor methods.

How to use splice JS?

Splice method. The splice () method helps us to remove the elements from the existing array and also insert the new elements in the place of removed elements.

Slice method. The slice () method helps us to get the copy of an array,it doesn’t modify the original array as splice does.

Difference between the splice and slice methods. Happy coding…

How do I create a list in JavaScript?

CREATE LIST IN JAVASCRIPT. To add this button style to the Themes toolbox, click “File/Theme editor” in the main menu. Create buttons in theme editor. Click “New theme” button to create animated buttons in the Themes toolbox. Enter new theme name and special notices and click “Create”.

What is a hash table in JavaScript?

Hash Tables in JavascriptConstructing a Hash Table Implementation for Javascript. Javascript is a prototype-based object-oriented language. In JavaScript, all non-scalar objects behave as associative arrays, a mapping from property keys to values. The keys and values can be scalars, objects or functions.

What is an array in javascript®?

What is an Array in JavaScript&Reg? An array in JavaScript® is a special type of variable that can hold multiple pieces of information or data values and is a storage place in memory. Those data values can be of the same type or of different types, but having different types of data in an array in JavaScript® is unusual.