To use these new features in version 1.7.0-Beta, configure the build scripts from the Early Access Preview. ![]() Starting with version 1.7.0, "Milestone" releases are now called "Beta" releases to align with the standard software release life cycle terminology, where "Beta" means that no new features are added and the focus is on stabilizing the features with the help of feedback from the community. Regular expressions now support named capturing groups in Kotlin/JS and Kotlin/Native and allow checking for exact matches at specific positions. This can make the code more self-documenting and easier to read.JetBrains has released Kotlin 1.7.0-Beta, enabling builder inference and definitely non-nullable types by default and reintroducing the min(), max(), minBy(), maxBy(), minWidth() and maxWith() functions. The developer can be aware of this and use alternatives like top-level functions or extension functions. Kotlin string literals can become difficult to read if multiple if cases are used to construct them. This solution could seem like the most human-readable way of conveying the purpose of our code: appending a sentence only if its contents are not null. One of the solutions would be to check the null value with elvis(?:) operator: var result = "First is $ What if the goal is to concatenate only if the second string is not null? There are a few options: if-else Println("First is $first and second is $second") A null String is concatenated as “null” in Kotlin: val first:String? = "first"
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