Array – introduce you to the Array type and how to manipulate array elements.

reference values – understand two value types in JavaScript, including primitive and reference values, and the differences between them.

Object – introduce you to the object type.

String – learn about string primitive type and some basic string operations.

Boolean – introduce you to the Boolean type.

Octal & binary literals – provide support for binary literals and change the way to represent octal literals.

Numeric Separator– show you how to make the numbers more readable by using underscores as numeric separators.

Number – learn how JavaScript use the Number type to represent the integer and floating-point numbers.

Data types – introduce to you the JavaScript data types, including primitive and reference types.

Variables – show you how to declare variables.

Syntax – explain the JavaScript syntax, including whitespace, statements, identifiers, keywords, expressions, and comments.

Watch the full course below or on the YouTube channel (7-hour watch).

Refactor renderLeads() to use a parameter.

How function parameters can improve our code.

Refactor the app to use a template string.

Make the template string even more dynamic.

Use createElement() and append() instead of innerHTML.

Make the input button work with onclick.Only trigger newCard() if you're allowed to.Assign values in the startGame function.Using Math.random() and Math.floor() to create a dice.Generating random numbers with Math.random().How can we avoid to hard-code card values?.Solving our cards problem with an array.

Improve the message with string concatenation.Here are all the sections in this comprehensive JavaScript course: The Basics And in order to achieve that, you must solve the challenges.Įach challenge is byte-sized and fast to solve so you will feel like you are progressing quickly. Per encourages you to code to build up your JavaScript muscle memory.

The course is built around 143 interactive challenges. He is the founder of and he is a great teacher. We just released a 7-hour beginner's JavaScript course on the YouTube channel. If you don't already know how to program in JavaScript, this is a great time to learn.

Java script basics