Or is it happening every time you run it? Is it a one-time crash due to too much memory usage? Is it a problem in the input you gave to the program? The first step is always to look at what is happening, and trying to determine where the problem is coming from. What do you do when a program you wrote is not behaving like you expect? Sometimes we do our best work, yet the program is not working correctly, for example, it’s crashing, it’s just slow or it’s printing wrong information. Figuring out where the error could beĭebugging is one of those skills that’s core to the activity of a programmer. One technique is very basic and involves trying to figure out the values of the state (the content of the variables), and the flow of the program, and printing those variables to the logs, or to the output of your program. Generally we can do two things to solve the bug. Solving the bug is generally easy once you know all of the above. Then the second hardest part is figuring out why this bug happens. Well, the hardest part is always identifying where the bug comes from. once you know there’s a bug, how do you solve it? Often times bugs only show up when the program is in production and used by the clients.Īnd. Then, by analyzing every single line of code you wrote for possible issues or side effects or unconsidered things.īut things always slip under the radar. Well, first by trying to avoid them as much as possible, by carefully thinking about how your program should work, even before you write a single line of code. By definition.Ī bug is a problem that you did not see or anticipate when you set out to write the code.Ī bug might be discovered only when you release your program to users, and that’s the worse situation.Ī bug can be discovered by yourself when you test the program, and it might even happen when things - working perfectly previously - starts to break because you changed one line.īugs are part of our day to day as developers, but our job is to minimize them as much as possible.ĭebugging is easy when you know how to deal with bugs. That would be ideal, right? But it was a dream.Īs good as you can become, there’s no way you can write bug-free code. Debugging is a great skill to learn how to solve every problem with your JavaScript code.Įvery day we wake up, have a nice breakfast, head to the computer and there we sit, to write perfect code that does exactly what we want.
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