Compiled Learning Objectives

Ordinal numbers

• Convert positions to ordinal numbers

Testing frameworks

• Explain why we need to use testing frameworks

Starting a project

• Identify a package.json
• Explain the purpose of a package.json

Using packages

• Define a dependency
• Define a package
• Identify some benefits of using a third-party party software library when programming
• Describe why need to use npm when we are building JavaScript applications

Installing Jest

• Outline the effects of running an installation command, e.g. npm install
• Install a dependency with npm

Jest's Application Programming Interface

• Explain why we use APIs in programming
• Identify some commonly used APIs

First test case

• Outline the effect of running npm test
• Interpret documentation to determine how part of a third-party API behaves
• Describe what toEqual checks in the Jest library
• State the current return value of a function and the target output for a given test
• Implement a test case to describe the behaviour of a function

Interpreting feedback

• Identify current output and target output in test feedback
• Determine the line an error occurred from some test feedback
• Give an example of why Jest makes tests easier to write than console.assert

Generalising further

• Extend an implementation based on more assertions

Anonymous functions

• Explain the difference between a named function and an anonymous function

Arrow functions

• Write an arrow function

Testing Workshop

• Practice solving problems while testing

Mentored pair programming

• Talk aloud when thinking about a problem.
• Write code in front of someone else.
• Analyse your strategies for solving problems in code.

Workshop:Playing Computer

• Play computer with a few short programs to work out what happens when they run
• Keep track of your place in a running program using frames
• Describe what happens when a function is called during runtime
• Check your understanding using an application like the Python visualiser