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Why does this Java program terminate despite that apparently it shouldn't (and didn't)?
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How to get the unique ID of an object which overrides hashCode()?
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Let me guess: it's not unique, when you have more than 2**32 objects in same JVM? ;) Can you point me to some place, where the non-uniqueness it is described? Thanx!
– ivan_ivanovich_ivanoff
May 26 '09 at 10:10
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How to round up a number in Javascript?
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jQuery Click fires twice when clicking on label
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Check if one list contains element from the other
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You can shorten it a little more if you want: list1.stream().anyMatch(list2::contains);
– tarka
May 15 at 10:00
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Matching an empty input box using CSS
... border: 1px solid red; /* Red border only if the input is empty */
}
More info and browser support: https://css-tricks.com/almanac/selectors/p/placeholder-shown/
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Key existence check in HashMap
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It is also more fluent to write .containsKey() than check for null. We should worry more about being easy to read, which saves developers time, than about some minor optimization, in most cases. At least not optimize before it becomes n...
Ruby, !! operator (a/k/a the double-bang) [duplicate]
...grammingRuby/language.html#truthvalues I've edited my answer to make this more clear.
– pkaeding
Aug 15 '12 at 23:17
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Find and replace in file and overwrite file doesn't work, it empties the file
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Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
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