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Do all if statements need else?
An if statement looks at any and every thing in the parentheses and if true, executes block of code that follows. If you require code to run only when the statement returns true (and do nothing else if false) then an else statement is not needed.
Are if statements bad for performance?
Nope. In fact, it’ll actually speed it up in most cases (because it’s allowed to skip over blocks of code). If you’re considering merging a bunch of if statements into one: don’t, you won’t get any benefits. However, as others have noted, having too many if statements can reduce code readability.
How do you avoid long if-else statements?
Avoid using nested if-else statements. Keep the code linear and straightforward. Utilize creating functions/methods. Compare it when we try to use an if-else statement that is nested and that does not utilize the power of the return statement, We get this (Code 1.4).
Are IF statements costly?
At the very lowest level (in the hardware), yes, ifs are expensive. In order to understand why, you have to understand how pipelines work.
Is it better to not use if statements?
There is nothing wrong with using if-statements, but avoiding them can sometimes make the code a bit more readable to humans. This is definitely not a general rule as sometimes avoiding if-statements will make the code a lot less readable. You be the judge. Avoiding if-statements is not just about readability.
Why are if statements bad for your code?
As I studied more about code design and best practices I began noticing how using lots of if statements could be an anti-pattern, making the code worse to read, debug and maintain. And so out I went to find alternative patterns to those if statements, and I think the patterns I’ve found have improved my code’s readability and maintainability.
What’s the best way to code without if statements?
Stay tuned for more coding tips articles that will cover immutability and functional programming. Also note, as pointed out by David Nagli, that the if-less solution would only work for integers while the if-based solution has the advantage of handling any number including decimal ones.
Why is my code so littered with IF statements?
One of the most common things I see around that I think makes code more difficult to read is the overuse of “if” statements. It’s one of the first programming tools we learn, and it is usually when we learn that the computer can do pretty much anything we like, “if” we use those statements right.