...str") case _: Int => println("int") } } And that's it. You can call foo(5) or foo("abc"), and it will work, but try foo(true) and it will fail. This could be side-stepped by the client code by creating a StringOrInt[Boolean], unless, as noted by Randall below, you make StringOrInt a seale...

...ten) want to do the filtering in a lazy sense -- You don't need to consume all of the memory to create a list up front, as long as the iterator returns the same thing a list would during iteration. If you're familiar with list comprehensions and generator expressions, the above filter is now (alm...

... answer. This solution takes advantage of the fact that toString() is not called on logged objects unless the console is open. var devtools = /./; devtools.toString = function() { if (!this.opened) { alert("Opened"); } this.opened = true; } console.log('%c', devtools); // devtools.ope...

How can I convert all values in an array to lowercase in PHP? 10 Answers 10 ...

...it and get a bit of a head-start. The app uses MongoDB and MongoMapper for all of its models and therefore has no need for ActiveRecord. In the previous version, I am unloading activerecord in the following way: ...

...e var, you can always cast the byte as in var y = (byte) 5 Although not really related, in C#7, a new binary prefix was introduced 0b, which states the number is in binary format. Still there is no suffix to make it a byte though, example: var b = 0b1010_1011_1100_1101_1110_1111; //int ...

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