O(n) size by default... great.
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def time[R](block: => R): R = { | |
val t0 = System.currentTimeMillis | |
val result = block // call-by-name | |
val t1 = System.currentTimeMillis | |
println("Elapsed time: " + (t1 - t0) + "ms") | |
result | |
} | |
val list1 = 1 to 10000 toList | |
val ary1 = 1 to 10000 toArray | |
time { (1 to 1000000).foreach { _ => list1.size } } // Elapsed time: 22672ms | |
time { (1 to 1000000).foreach { _ => ary1.size } } // Elapsed time: 20ms |
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