What are common variable errors in programming?
Common variable errors include uninitialized variables, type mismatches, and scope issues. Would you like examples?
Yes, can you give me an example of an uninitialized variable error?
Sure! An uninitialized variable error occurs when you try to use a variable that hasn't been assigned a value. For instance, in JavaScript:
let x;
console.log(x); // This will log 'undefined' because x is uninitialized.
What about type mismatches?
Type mismatches happen when you try to perform operations on incompatible types. For example:
let num = 5;
let str = '10';
console.log(num + str); // This will concatenate instead of adding, resulting in '510'.
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