What are the common mistakes developers make with null and undefined?
An example of an AI chatbot conversation about common mistakes with null and undefined in programming.
What are the common mistakes developers make with null and undefined?
One common mistake is using null and undefined interchangeably, which can lead to unexpected errors.
Can you give me an example of that?
Sure! If you check if a variable is null but forget to check for undefined, you might miss an error.
What about type checking? How does that relate?
Type checking can help catch these issues. Using 'typeof' can differentiate between null and undefined.
Are there best practices to avoid these mistakes?
Yes, always initialize your variables and use strict equality checks (===) to avoid confusion.
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