Do you avoid Double-Negative Conditionals in if-statements?
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Try to avoid Double-Negative Conditionals in if-statements. Double negative conditionals are difficult to read because developers have to evaluate which is the positive state of two negatives. So always try to make a single positive when you write if-statement.
if (!IsValid){// handle error}else{// handle success}
❌ Figure: Figure: Bad example
if (IsValid){// handle success}else{// handle error}
✅ Figure: Figure: Good example
if (!IsValid){// handle error}
✅ Figure: Figure: Another good example
Use pattern matching for boolean evaluations to make your code even more readable!
if (IsValid is false){// handle error}
✅ Figure: Figure: Even better