9.4 HTML, CSS and JavaScript – Lesson 3 Review KS3

This takes in an input, does something with it, and returns an output.

When you call a function, you tell the computer to run a block of code. The function is written between;

This code <input type=”input” id=”age”>

To define a variable you start with…

The use of “==” when making comparisons with JavaScript means…

var name = document.getElementById(“fname”).value

JavaScript is used to do what?

JavaScript, Python, Ruby, C++ are all examples of what?

…a sequence of instructions written in JavaScript that a computer can put into action.

This JavaScript code: window.alert(5 + 6);