Manipulating Arrays
Explore JavaScript arrays to store and organize multiple data values efficiently. Understand how to create one-dimensional and two-dimensional arrays, manipulate elements using array functions, and apply best practices for clear, maintainable code.
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An array in JavaScript is a data structure used to store multiple values in a single variable. These values can be of any data type, and arrays are especially useful for managing lists or sequences of items. Arrays in JavaScript are zero-indexed, meaning the first element is accessed with an index 0.
Syntax of arrays
The syntax of arrays in JavaScript is as follows:
let arrayName = [element1, element2, element3];
An example is given below.
let fruits = ["apple", "banana", "cherry"];
An array fruits is defined with three elements: "apple", "banana", and "cherry". Each element can be accessed using its index, e.g., fruits[0] returns "apple".