WebScala recursion no side effects Tail Recursion and Side effect How to functionally handle a logging side effect Why does object notation in Scala apparently eliminate the right side associativity of methods ending in ':'? Clarification about Scala Future that never complete and its effect on other callbacks WebIn Scala, a for expression — which we’ll write as for-expression — is a different use of the for construct. While a for-loop is used for side effects (such as printing output), a for …

Configuring and suppressing warnings in Scala

http://eslint.cn/docs/rules/no-unused-expressions WebFor example, these lines of code don’t return values, so they’re used for their side effects: Scala 2 Scala 3 if (a == b) action () println ( "Hello" ) if a == b then action () println ( "Hello" ) The first example runs the action method as a side effect when a is equal to b . discount whole bean coffee

What is the difference between def foo = {} and def foo() = {} in Scala?

WebJun 8, 2024 · 2 According to IntelliJ the faded text means Unused expression without side effects which is telling you that it is evaluated but the answer is thrown away. – Tim Jun … WebWhen you say f () you are not passing an argument to a function that expects one. Scala can put there Unit for you, but it is deprecated, hence the second warning. You should call it as f ( ()). Another option could be call by name parameter def ignore (f: => Unit) = { userDisabled = true f userDisabled = false } WebThese Scala String methods are also pure functions: isEmpty length substring Many methods on the Scala collections classes also work as pure functions, including drop, filter, and map. Examples of impure functions Conversely, the following functions are impure because they violate the definition. discount white foam pig