6. Explain the concept of Null Safety in Kotlin. Null Safety in Kotlin addresses the issue of null references, a common source of runtime errors in programming. Every variable in Kotlin is non-nullable by default, meaning it cannot hold a null value unless explicitly specified. Kotlin introduc...
For simplicity, we’ll use integers as examples in this tutorial. 3. Using the ‘/’ and ‘%’ Operators In Kotlin, computing the quotient and remainder is straightforward, thanks tothe division operator ‘/’ and the modulus operator ‘%’: valquotient1 =42/4valreminder1 =42%4assertEquals...
For Kotlin Multiplatform, add the dependency below to your module's build.gradle.kts file:sourceSets { val commonMain by getting { dependencies { implementation("com.github.skydoves:sandwich:$version") implementation("com.github.skydoves:sandwich-ktor:$version") implementation("com.github.skydoves:...
Λrrow is a library for Typed Functional Programming in Kotlin. Arrow aims to provide alingua francaof interfaces and abstractions across Kotlin libraries. For this, it includes the most popular data types such asOption, andEither, functional operators such aszipOrAccumulate, and computation blocks...
About errors:help@w3schools.com × SQLANDOperator ❮ PreviousNext ❯ The SQL AND Operator TheWHEREclause can contain one or manyANDoperators. TheANDoperator is used to filter records based on more than one condition, like if you want to return all customers from Spain that sta...
Nullable elements (?) can also produce unexpected behavior. To avoid aNullPointerException, Kotlin may inline calls likeexpr.toString()toString.valueOf(expr)whenexpris nullable. Make sure that you write CodeQL around the extracted code, which may not exactly match the code as written in the cod...
Kotlin also provides safe and unsafe cast operators: // unsafe "as" cast throws exceptions val a: String = b as String // safe "as?" cast returns null on failure val c: String? = d as? String Inline functions Yes No Reduces overhead memory costs and improves speed by inlining functio...
Kotlin Operator 1. Overview In this article, we are going to talk about thedifference between “==” and “===” operators in Kotlin. In Kotlin, just like in Java, we have two different concepts of equality,Referential equality, andStructural equality. ...
Smart cast is a technique in which kotlin compiler automatically (safe) cast the objects to their respective type by tracking theischecks and explicit cast to immutable values. fun getStrLength(str: Any):Int?{if(strisString){//automatically cast to string type.returnstr.length}returnnull} ...
In this part, we are going to learn about operators and comments in Kotlin. Those who are willing to learn about Kotlin, Pros and Cons of it, and Kotlin Variables and DataTypes, please go through my articles on the links below. Introduction To Kotlin - Part One Kotlin Variables And Data...