kotlin-stdlib/kotlin.time/Duration/Companion/parseIsoStringOrNull

parseIsoStringOrNull

fun parseIsoStringOrNull(value: String): Duration?(source)

Parses a string that represents a duration in restricted ISO-8601 composite representation and returns the parsed Duration value or null if the string doesn't represent a duration in the format acceptable by parseIsoString.

Since Kotlin

1.6

Samples

import kotlin.test.*
import kotlin.time.*
import kotlin.time.Duration.Companion.days
import kotlin.time.Duration.Companion.milliseconds
import kotlin.time.Duration.Companion.minutes
import kotlin.time.Duration.Companion.nanoseconds
import kotlin.time.Duration.Companion.seconds

fun main() { 
   //sampleStart 
   val isoFormatString = "PT1H30M"
val defaultFormatString = "1h 30m"

println(Duration.parseIsoString(isoFormatString)) // 1h 30m
// Duration.parseIsoString(defaultFormatString) // will fail
println(Duration.parseIsoStringOrNull(defaultFormatString)) // null 
   //sampleEnd
}