Kotlin
Kotlin
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kotlin.text.contains

contains

kotlin-stdlib / kotlin-text - contains 
operator fun CharSequence.contains(
    other: CharSequence, 
    ignoreCase: Boolean = false
): Boolean

Returns true if this char sequence contains the specified other sequence of characters as a substring.

Parameters

ignoreCase - true to ignore character case when comparing strings. By default false.

operator fun CharSequence.c