parseOrNull
Parses a string that represents a duration and returns the parsed Duration value, or null if the string doesn't represent a duration in any of the supported formats.
The following formats are accepted:
ISO-8601 Duration format, e.g.
P1DT2H3M4.058S, see toIsoString and parseIsoString.The format of string returned by the default Duration.toString and
toStringin a specific unit, e.g.10s,1h 30mor-(1h 30m).
Since Kotlin
1.6Samples
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"
val singleUnitFormatString = "1.5h"
val invalidFormatString = "1 hour 30 minutes"
println(Duration.parse(isoFormatString)) // 1h 30m
println(Duration.parse(defaultFormatString)) // 1h 30m
println(Duration.parse(singleUnitFormatString)) // 1h 30m
// Duration.parse(invalidFormatString) // will fail
println(Duration.parseOrNull(invalidFormatString)) // null
//sampleEnd
}