How do you read an existing code written by someone else?
What’s the best way to read and understand someone else’s code?
- Find one thing you know the code does, and trace those actions backward, starting at the end. Say, for example, you know that the code you’re viewing ultimately creates a file with a list of movie titles.
- Rinse and repeat.
How do I fix bad codes?
Strategies for Fixing Bad Code
- Have the original author rewrite the bad code. You can, of course, simply to ask the person who wrote the bad code to fix it.
- Rewrite the bad code yourself.
- Reject the bad code.
- Keep the bad code, but note its badness (and fix it later).
- Destroy everything and start from scratch.
How do you conquer legacy codes?
Most of the time, you’ll want to keep things stable. Just make incremental additions using the existing patterns and practices of the code. Re-use existing elements. Make the least disruptive changes possible, while making small, incremental improvements by cleaning and refactoring.
How can I read better codes?
How to Read Code (Eight Things to Remember)
- Learn to Dig. When you’re diving into a mature codebase for the first time, you might not feel like a developer.
- Go Back in Time.
- Read the Specs.
- Think of Comments as Hints.
- Find Main.
- Notice Style.
- Expect to Find Garbage.
- Don’t Get Lost.
How do you know if a code is efficient?
You know you are writing good code when:
- Things are clever, but not too clever.
- Algorithms are optimal, both in speed as well as in readability.
- Classes, variables and functions are well named and make sense without having to think too much.
- You come back to it after a weekend off, and you can jump straight in.
How do you deal with inefficient coding turned in by your team *?
The best way to do it is by asking questions and showing your colleague the respect you would want if the situation were reversed. By asking questions instead of immediately criticising their bad code, you prompt them to self-evaluate their coding practices.
What is debug computer science?
Debugging is the process of detecting and removing of existing and potential errors (also called as ‘bugs’) in a software code that can cause it to behave unexpectedly or crash. To prevent incorrect operation of a software or system, debugging is used to find and resolve bugs or defects.
What is beautiful code?
Beautiful code is code that everyone can appreciate, or in other words – read. It’s actually quite hard to write code that can be read by beginners and experts but still preserve efficiency, scalability, and maintainability.
What is legacy code C++?
Legacy code is a source code that relates to a no-longer supported or manufactured operating system or other computer technology. By Wikipedia. Legacy code is referred to code that gets inherited by a team or a programmer from somewhere else (external or internal) Code is legacy code as soon as it’s written.
How can I improve my understanding code?
To assist in your learning – courtesy of the Coding Dojo instructors – here are seven tips on how to learn programming faster.
- Learn by doing.
- Grasp the fundamentals for long-term benefits.
- Code by hand.
- Ask for help.
- Seek out more online resources.
- Don’t just read the sample code.
- Take breaks when debugging.
How do you read codes efficiently?
How do you read and understand someone else’s code?
Let’s start at the beginning. What’s the best way to read and understand someone else’s code? The best way I’ve ever discovered to read and understand someone else’s code is to: 1. Find one thing you know the code does, and trace those actions backward, starting at the end.
How do you approach a code base?
Leave that part of the code, approach the code base from a different angle, and when you come back to that bit later, it will probably make more sense. So before you even begin looking at a code base, I recommend getting as much tooling on your side as possible.
What happens when you read more code?
And the faster you’re able to do it. It’s a wonderfully self-perpetuating cycle: you read more code; you gain the ability to understand it quicker and more effectively; so you are able to consume even more code; and so on. And it doesn’t stop there: you’ll also see huge positive gains in your own coding.
How do you trace a code step by step?
1. Find one thing you know the code does, and trace those actions backward, starting at the end. Say, for example, you know that the code you’re viewing ultimately creates a file with a list of movie titles. Figure out where in the code — the specific, few lines — it generates that file.