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How to define optional methods in Swift protocol?
Is it possible in Swift? If not then is there a workaround to do it?
19 Answers
19
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Should you choose the MONEY or DECIMAL(x,y) datatypes in SQL Server?
...ult
Output: 2949.0000 2949.8525
To some of the people who said that you don't divide money by money:
Here is one of my queries to calculate correlations, and changing that to money gives wrong results.
select t1.index_id,t2.index_id,(avg(t1.monret*t2.monret)
-(avg(t1.monret) * avg(t2.monret...
How to call asynchronous method from synchronous method in C#?
...t I want to call from synchronous method. So far all I have seen from MSDN documentation is calling async methods via async methods, but my whole program is not built with async methods.
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How do I use the new computeIfAbsent function?
...ic static void main(String[] s) {
Map<String, Boolean> whoLetDogsOut = new ConcurrentHashMap<>();
whoLetDogsOut.computeIfAbsent("snoop", k -> f(k));
whoLetDogsOut.computeIfAbsent("snoop", k -> f(k));
}
static boolean f(String s) {
System.out....
jQuery Ajax error handling, show custom exception messages
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This is still the correct way of doing this after 2 years and a half... :) I went a little further and actually return my own error JSON object that can handle single or multiple errors, quite good for server-side form validation.
– Ale...
How to delete duplicate lines in a file without sorting it in Unix?
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To save it in a file we can do this awk '!seen[$0]++' merge_all.txt > output.txt
– Akash Kandpal
Jul 19 '18 at 11:42
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git:// protocol blocked by company, how can I get around that?
...protocol port (9418), then you should make a more persistent change so you don't have to remember to issue commands suggested by other posts for every git repo.
The below solution also just works for submodules which might also be using the git: protocol.
Since the git message doesn't really point...
How do I check if a SQL Server text column is empty?
...he actual question, but just a remark for people that only read the title, don't forget to add OR mytextfield IS NULL when your column can be NULL
– Daan
Aug 27 '15 at 9:50
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Add a dependency in Maven
How do I take a jar file that I have and add it to the dependency system in maven 2? I will be the maintainer of this dependency and my code needs this jar in the class path so that it will compile.
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Detecting request type in PHP (GET, POST, PUT or DELETE)
.../ The request is using the POST method
}
For more details please see the documentation for the $_SERVER variable.
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