apply V.S with in Kotlin

apply_with.kt

// Usage of apply: do something with an object and return it
fun getDeveloper(): Developer {
    return Developer().apply {
        developerName = "Amit Shekhar"
        developerAge = 22
    }
}  

// Usage of with: transform A -> B
fun getPersonFromDeveloper(developer: Developer): Person {
    return with(developer) {
        Person(developerName, developerAge)
    }
}