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February 11, 2019 18:52
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A Kotlin extension to introduce optional chaining to error handling.
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| inline fun <T> tryOptional(expression: () -> T): T? { | |
| return try { | |
| expression() | |
| } catch (ex: Throwable) { | |
| null | |
| } | |
| } |
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Usage:
tryOptional { // Expression that may throw an exception or return a value giveMeSomething() }?.let { something -> // Something is guaranteed to be available here print("I have something: $something") } ?: print("I have nothing")