To create a useful debugging feature, consider including these fundamental capabilities:

: Create markers that pause the program at a specific line of code or when a specific condition is met (e.g., when a variable changes).

: A view showing the sequence of function calls that led to the current line.

: Advanced tools like the Chrome DevTools Sources panel or IntelliJ's Drop Frame allow you to change code or variable values on the fly without restarting the program. Implementation Approaches

: Execute the next line of code without entering functions. Step Into : Enter a function to see what happens inside it.

Depending on your project, you might build this feature in one of three ways:

: Features that let the user see the "live" data: