What you will learn

• Avoid common pitfalls and mistakes other Javascript coders make
• Build your own Javascript framework or library
• Write solid, good Javascript code
• Drastically improve your ability to debug problems in Javascript.

An API is a way for a program to interact with another program. By using third-party APIs from your code, you can utilise functionality developed elsewhere. By creating an API to access your own data, other programs can take advantage of your services in a secure and easy fashion.