Add program errors (#2380)

* created programmer error file * Update content/roadmaps/107-nodejs/content/103-nodejs-error-handling/103-error-types/ProgrammerError.md Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>
2 years ago · db29c1df91
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--- a/content/roadmaps/107-nodejs/content/103-nodejs-error-handling/103-error-types/ProgrammerError.md
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+# Programmer Errors
+
+Programmer errors are bugs and should be dealt with in our code. they can always be avoided by changing some line(s) of code. Examples of such errors are; when a String is passed where an Object was expected, trying to read a property that is “undefined”, called an asynchronous function without a callback, and so on.