fun String.toFloatOrNull(): Float?
Parses the string as a Float number and returns the result or null if the string is not a valid representation of a number.
© 2010–2020 JetBrains s.r.o. and Kotlin Programming Language contributors
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/to-float-or-null.html