Nested ‘If’ Statements in JavaScript
This tutorial explains how to create nested if statements in JavaScript. A nested if statement is an if statement that is inside another if statement. Using nested if statements is not always the …
‘If’ Statements in JavaScript
This tutorial explains how to use ‘if’ statements for conditional programming in JavaScript. An ‘if’ statement can be used to make decisions based on whether a condition evaluates to true or …
Finding the length of arrays and strings in JavaScript
This tutorial explains how to find the length of an array (how many elements are in an array), the length of an element in an array, and the length of …
Arrays in JavaScript
This tutorial explains how to create an array in JavaScript. An array is a data structure (a way of storing and organising data) which, unlike variables, can store more than one value …
Variable scope in JavaScript
Variable scope refers to the context that a variable is defined in. JavaScript has two variable scopes: global and local. A global variable is a variable which is declared outside a function and its value …
Defining and using functions in JavaScript
This tutorial explains how to define and call your own functions in JavaScript. In programming, a function is a section of code in a program that is given a name …
JavaScript and HTML Events
This video tutorial explains how to run JavaScript code when events occurr on a webpage. Events include clicking an HTML element (such as a button, an image, or some text) …
Working with Strings in JavaScript
This video tutorial explains some different tasks you can perform with strings including: how to concatenate (join) strings together how to convert from integer to string ho to change text to uppercase or lowercase letters …
Arithmetic in JavaScript
In this tutorial, you will learn how to use a range of arithmetic operators in JavaScript to assign values, modify variables and perform mathematical calculations. If you have created your own variables …
Variables and Data Types in JavaScript
In this second video from the beginners JavaScript tutorial series, you will learn how to create variables and work with strings, integers, and float data types in JavaScript. Variables are …
Getting started with JavaScript
This is the first video from a beginners tutorial series on JavaScript. In this video, you will learn how to set up an HTML document to use JavaScript code and …