Step 2

One of the most important concepts in programming is variables. A <dfn>variable</dfn> points to a specific memory address that stores a value. Variables are given a name which can be used throughout your code to access that value. Declaring a variable means giving it a name. In JavaScript, this is often done with the `let` keyword. For example, here is how you would declare a `hello` variable: ```js let hello; ``` Variable naming follows specific rules: names can include letters, numbers, dollar signs, and underscores, but cannot contain spaces and must not begin with a number. Use the `let` keyword to declare a variable called `character`. _Note_: It is common practice to end statements in JavaScript with a semicolon. `;`