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1 Answer Sorted by: 3 In this case, you may want to use startsWith () rather than contains (). Or it might not detect invalid URLs like, say, abc://www.example.com You can use this: val prefixes = arrayOf ("http://", "https://", "www.") fun String.isValidUrl () = prefixes.any { this.startsWith (it) } OR Use Android's built-in URLUtil.isValidUrl ()

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In Kotlin, how to check List contains one or another dataclass? Asked 4 years, 8 months ago Modified 4 years, 8 months ago Viewed 4k times 1 I have two data classes data class Card (val code: String?, val caption: String?, val icon: String?) data class Currency (val code: String?, val caption: String?, val descr: String?)

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To check if given string contains specified character in Kotlin, you can use String.contains () function. Call contains () function on the given String object str, and pass the character in ch as argument to the function. If the string str contains the character ch, then the contains () function returns true, else it returns false.

Kotlin program to check if an array contains any one of multiple values CodeVsColor

Kotlin - Check if Array Contains Specified Element. To check if an Array contains a specified element in Kotlin language, use Array.contains () method. Call contains () method on this array, and pass the specific search element as argument. contains () returns True if the calling array contains the specified element, or False otherwise.

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1.9 kotlin-stdlib / kotlin.collections / any any Common JVM JS Native 1.0 fun Array.any(): Boolean (source) fun ByteArray.any(): Boolean (source) fun ShortArray.any(): Boolean (source) fun IntArray.any(): Boolean (source) fun LongArray.any(): Boolean (source) fun FloatArray.any(): Boolean (source) fun DoubleArray.any(): Boolean (source)

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The Kotlin List.any () function can be used to check if the list has at least one element, or if the list has at least one element that matches the given predicate. Syntax 1 fun Iterable.any (): Boolean Returns true if collection has at least one element. Syntax 2 fun Iterable.any (predicate: (T) -> Boolean): Boolean

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Using array contains : We can also pass array.contains () method as a predicate. It will work like same : fun main() { val givenArray = intArrayOf(1, 2, 3, 4, 5, 7, 9, 11) val itemsArray = intArrayOf(5,11) println(givenArray.any(itemsArray::contains)) } Summary : The below program puts everything in one place :

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163 This answer is not useful Save this answer. Show activity on this post. The equivalent you are looking for is the contains operator. array.contains ("value") Kotlin offer an alternative infix notation for this operator: "value" in array

Kotlin program to check if an array contains any one of multiple values CodeVsColor

kotlin-stdlib / kotlin.collections / containsAll containsAll Common JVM JS Native 1.0 fun Collection.containsAll( elements: Collection ): Boolean (source) Checks if all elements in the specified collection are contained in this collection.

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1.0 operator fun Array.contains(element: T): Boolean (source) operator fun ByteArray.contains(element: Byte): Boolean (source) operator fun ShortArray.contains(element: Short): Boolean (source) operator fun IntArray.contains(element: Int): Boolean (source) operator fun LongArray.contains(element: Long): Boolean (source)

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In the above program, we've used a non-primitive data type String and used Arrays's stream() method to first convert it to a stream and anyMatch() to check if array contains the given value toFind. Here's the equivalent Java code: Java program to check if array contains a given value.

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To check if given string contains any of the string value from a list in Kotlin, you can iterate over the string values in List and check if the string contains that string value using String.contains () function. Examples Check if given recipe string contains any of the prohibited ingredients

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11 Answers Sorted by: 61 I'd use any () extension method: arrayOf (1, 2, 3).any { it == 2 || it == 3 } This way, you traverse the array only once and you don't create a set instance just to check whether it's empty or not (like in one of other answers to this question). Share Improve this answer Follow answered Jan 4, 2018 at 16:27 aga

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This article explores different ways to check if a string contains any of the given substrings in Kotlin. The idea is to call the contains () function to match against each substring. There are several ways to do this, which are covered below in detail: 1. Using Loop.

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contains Common JVM JS Native 1.0 abstract fun contains(element: @UnsafeVariance E): Boolean (Common source) (Native source) Checks if the specified element is contained in this collection.

Kotlin program to check if a string contains another substring CodeVsColor

In Kotlin, the Array class has the contains function to check if the array contains a given value. This is exactly what we're looking for. Moreover, when we call the contains function, we can use the in operator to make the code easier to read: assertThat ( "Kotlin" in myArray).isTrue assertThat ( "Php" in myArray).isFalse