For months now we have been building a toolkit to help us write great software. In our toolkit we have:
Specifications, like user stories, acceptance criteria, and Given/When/Then
Help us understand what to write and check we've written the right thing.
Tests, like unit tests and assertions
Help us break down our problems and check our solutions work even when we change things.
Asking questions
Help us formally reason through our problems and identify gaps in our mental models.
Playing computer
Helps us reason about code with a mental model.
Audits, like Lighthouse
Help us identify performance and quality improvements we can make to our code.
And now we can add debuggers to our toolkit.
Debuggers are tools that help us find and fix problems, or "bugs", in our JavaScript code. They let us step through our code line-by-line while it runs to see what is happening. This helps us find the place where our mental model of the code is different from our implementation. Your browser has a debugger and so does VSCode.
Key reasons we use debuggers:
See what's happening inside functions
Check if variables have expected values
Pause execution and step through slowly
Find exactly where mistakes happen
JavaScript debuggers give control over execution flow to methodically test and fix bugs. Complete this tutorial (it's a 7 minute video plus tasks) to explore the Chrome Debugger.
Maximum time in hours
.5
How to get help
AI can help you here. Code along with AI so it has the context and ask it when you get stuck. Use this starting prompt:
Talk me through the tutorial step by step. Wait for me to confirm I've completed the step before going on to the next step. When I get stuck, answer my questions in CEFR B2 English meant for an adult professional speaking in a second language. Do not rephrase the tutorial text, just explain it when I ask you. Say okee dokee if you understand, and begin with step 1.
From Module-JS2 created by SallyMcGrath: CodeYourFuture/Module-JS2#94
Link to the coursework
https://developer.chrome.com/docs/devtools/javascript/
Why are we doing this?
For months now we have been building a toolkit to help us write great software. In our toolkit we have:
Specifications, like user stories, acceptance criteria, and Given/When/Then Help us understand what to write and check we've written the right thing.
Tests, like unit tests and assertions Help us break down our problems and check our solutions work even when we change things.
Asking questions Help us formally reason through our problems and identify gaps in our mental models.
Playing computer Helps us reason about code with a mental model.
Audits, like Lighthouse Help us identify performance and quality improvements we can make to our code.
And now we can add debuggers to our toolkit.
Debuggers are tools that help us find and fix problems, or "bugs", in our JavaScript code. They let us step through our code line-by-line while it runs to see what is happening. This helps us find the place where our mental model of the code is different from our implementation. Your browser has a debugger and so does VSCode.
Key reasons we use debuggers:
JavaScript debuggers give control over execution flow to methodically test and fix bugs. Complete this tutorial (it's a 7 minute video plus tasks) to explore the Chrome Debugger.
Maximum time in hours
.5
How to get help
AI can help you here. Code along with AI so it has the context and ask it when you get stuck. Use this starting prompt: