Created
April 15, 2017 07:53
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From http://stackoverflow.com/questions/7484928/what-does-a-lazy-val-do
Example of how lazy val does memoization.
Values are evaluated on first call only.
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| val x = { println("x"); 15 } | |
| //x | |
| //x: Int = 15 | |
| lazy val y = { println("y"); 13 } | |
| //y: Int = <lazy> | |
| x | |
| //res2: Int = 15 | |
| y | |
| //y | |
| //res3: Int = 13 |
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