Arrays provide a tabular way to organise a collection of related data. For example, if we wished to store the seven names of each weekday as Strings, we could use an array containing seven elements. This array would be structured as follows:

• JavaScript array objects can collect data values of either the same types or different types • An array index begins with zero • Types of arrays o one-dimensional array o multi-dimensional array • Array properties o length -- the size of an array • Array methods o concat(value1, value2,...) -- Concatenation o join(separator) -- Form ...

Array Objects Three methods to create an array new keyword and constructor with elements to store: arrA = ( , 2, , 42); new keyword and single number (size of the array) arrB = (42); Square brackets (similar to PHP) arrC = [ , 2, , 42]; 23

If you're intent on mastering the fundamentals of JavaScript, as opposed to just getting a feel for the language, work with this book and the online exercises in a 15-to-30-minute session, then...

Arrays are fundamental data structures in JavaScript, enabling you to store and manipulate collections of data efficiently. This guide is designed to help you understand, create, and work with arrays through detailed explanations, code examples, exercises, and multiple-choice questions to reinforce your learning. 1.

Array, Function and String Marks: 14 (R-2, U-4, A-8) Course Outcome: Implement arrays and functions in javascript. Unit Outcome: 1. Create array to solve the given problem. 2. Perform the specified string manipulation operation on the given string. 3. Develop javascript to implement the given function. 4.

• Arrays are used to store a list of values in a single variable • Values can be of any type, and are split with commas and wrapped in square brackets • Values can be accessed with arrayVar[index] • The length of an array can be found with .length var myArray = [‘cars’, 12, false]; var age = myArray[1]; console.log(age); myArray[2 ...

JavaScript arrays are Array objects. You use the new operator to create an array and to specify the number of elements in an array. The new operator creates an object as the script executes by obtaining enough memory to store an object of the type specified to the right of new .

Creating an Array Using an array literal is the easiest way to create a JavaScript Array. Syntax: var array_name = [item1, item2, ...]; Example var cars = ["Saab", "Volvo", "BMW"]; Try it Yourself » Spaces and line breaks are not important. A declaration can span multiple lines: Example var cars = [ "Saab", "Volvo", "BMW" ]; Try it Yourself »

JavaScript –Arrays (array methods) Array is an object (reference type) and has methods that do certain operations on the array. •.push(newelement) –Adds an item to the end of the array •.pop() –Removes the last array element and returns it •.shift() –This removes the first element of an array and returns it