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What makes Scala's operator overloading “good”, but C++'s “bad”?
...e not to be repeated in newer languages. Certainly, it was one feature specifically dropped when designing Java.
14 Answers...
Use dynamic (variable) string as regex pattern in JavaScript
...reate the regex from a string, you have to use JavaScript's RegExp object.
If you also want to match/replace more than one time, then you must add the g (global match) flag. Here's an example:
var stringToGoIntoTheRegex = "abc";
var regex = new RegExp("#" + stringToGoIntoTheRegex + "#", "g");
// at ...
How to find the key of the largest value hash?
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Another way could be as follows:
hash.each { |k, v| puts k if v == hash.values.max }
This runs through each key-value pair and returns (or in this case puts's) the key(s) where the value is equal to the max of all values. This should return more than one key if there's a tie.
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“Delegate subtraction has unpredictable result” in ReSharper/C#?
...y those gotchas are in fringe cases and you are unlikely to encounter them if you're just instrumenting simple events. There is no better way to implement your own add/remove handlers, you just gotta take notice.
I'd suggest downgrading ReSharper's warning level for that message to "Hint" so that y...
Detect when an HTML5 video finishes
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Why do you check if e exists?
– Allan Stepps
Aug 7 '13 at 0:12
3
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How do I get the computer name in .NET
...ame() to get the FQDN
See How to find FQDN of local machine in C#/.NET ? if the last doesn't give you the FQDN and you need it.
See details about Difference between SystemInformation.ComputerName, Environment.MachineName, and Net.Dns.GetHostName
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Removing double quotes from variables in batch file creates problems with CMD environment
...n. With " as the old and nothing as the new, the quotes are removed, even if they are in the middle, even if they are unbalanced.
– Jesse Chisholm
Feb 12 '15 at 15:33
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Take a char input from the Scanner
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What's the difference between "exactly" and "strictly" in this context?
– user6096242
Nov 29 '17 at 18:02
2
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how to change default python version?
...you do so depends on the shell, but perhaps you could do alias py=python3
If you are confused about how to start the latest version of python, it is at least the case on Linux that python3 leaves your python2 installation intact (due to the above compatibility reasons); thus you can start python3 w...
How to select date from datetime column?
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I believe this does not work as expected if the Rails timezone is something other than UTC. This is because DATE() resolves the column value to UTC. So a date such as "Fri, 30 Dec 2016 00:00:00 SGT +08:00" which we expect to find if we queried for "2016-12-30" will ...