Debugging in JavaScript can be tricky, but with the right tools and techniques, you can easily spot and fix issues. In this article, we’re diving into the ultimate JS debugging tips to help you become a better developer by mastering the debugging process.
🔍 What’s Inside 📊
- Tip 1: 🖥️ Use the Console Effectively
- Tip 2: 🐞 Debug with the Debugger
- Tip 3: 🛠️ Use a Debugger Tool
- Tip 4: ✍️ Write Better Error Messages
- Tip 5: 🧪 Test and Validate Your Code
- Tip 6: 🧹 Use a Linter and Formatter
🖥️ Tip 1: Use the Console Effectively
The console is your first line of defense when debugging JS issues. Here’s how to get the most out of it.
console.log():
This is your go-to for printing out variable values and execution flow.
const sum = (a, b) => a + b;
console.log(sum(5, 3)); // Outputs: 8
console.error():
Use this when logging errors. It highlights issues and prints a stack trace.
try {
throw new Error('Oops!');
} catch (error) {
console.error(error);
}