Mis on peamine põhjus kasutada Kotlin programmeerimiskeeles võtmesõna suspend?

The suspend keyword in Kotlin is used to mark functions that can be suspended and resumed later without blocking the thread. This is the foundation of coroutines — a mechanism for asynchronous and non-blocking programming.

Using suspend allows writing asynchronous code that appears sequential, making it easier to read and maintain. Such functions can perform long-running operations (e.g., network requests or input/output) without blocking the main thread.

Example:

suspend fun fetchData(): String {
    delay(1000) // suspends execution for 1 second without blocking
    return "Data loaded"
}