In JavaScript: {foo: bar, biz: qux}.
In Ruby: {foo => bar, biz => qux}.
在Java中:
HashMap<K, V> map = new HashMap<>();
map.put(foo, bar);
map.put(biz, qux);
Kotlin肯定能比Java做得更好吗？
In JavaScript: {foo: bar, biz: qux}.
In Ruby: {foo => bar, biz => qux}.
在Java中:
HashMap<K, V> map = new HashMap<>();
map.put(foo, bar);
map.put(biz, qux);
Kotlin肯定能比Java做得更好吗？
You can do:
val map = hashMapOf(
"John" to "Doe",
"Jane" to "Smith"
)
Here, to is an infix function that creates a Pair.
Or, more abstract: use mapOf() like
val map = mapOf("a" to 1, "b" to 2, "c" to 3)
(发现日期:kotlinlang)