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How to use shell commands in Makefile
I'm trying to use the result of ls in other commands (e.g. echo, rsync):
2 Answers
2...
How do we control web page caching, across all browsers?
...he correct minimum set of headers that works across all mentioned clients (and proxies):
Cache-Control: no-cache, no-store, must-revalidate
Pragma: no-cache
Expires: 0
The Cache-Control is per the HTTP 1.1 spec for clients and proxies (and implicitly required by some clients next to Expires). The...
Angular JS: What is the need of the directive’s link function when we already had directive’s contro
I need to perform some operations on scope and the template. It seems that I can do that in either the link function or the controller function (since both have access to the scope).
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What is the worst gotcha in C# or .NET? [closed]
I was recently working with a DateTime object, and wrote something like this:
61 Answers
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How to extract the first two characters of a string in shell scripting?
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Probably the most efficient method, if you're using the bash shell (and you appear to be, based on your comments), is to use the sub-string variant of parameter expansion:
pax> long="USCAGol.blah.blah.blah"
pax> short="${long:0:2}" ; echo "${short}"
US
This will set short to be the f...
Solutions for INSERT OR UPDATE on SQL Server
...ford & @Esteban show general idea but error-prone.
To avoid deadlocks and PK violations you can use something like this:
begin tran
if exists (select * from table with (updlock,serializable) where key = @key)
begin
update table set ...
where key = @key
end
else
begin
insert into tab...
Auto Resize Image in CSS FlexBox Layout and keeping Aspect Ratio?
...oking for an answer to my distorted images" i got here for the same reason and your solution helped me (what was marked as the actual solution didn't help me at all)
– Wagner Danda da Silva Filho
Jun 29 '16 at 17:30
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How to join two sets in one line without using “|”
Assume that S and T are assigned sets. Without using the join operator | , how can I find the union of the two sets? This, for example, finds the intersection:
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Memory footprint of Haskell data types
...ge conventions)
Rule of thumb: a constructor costs one word for a header, and one word for each field. Exception: a constructor with no fields (like Nothing or True) takes no space, because GHC creates a single instance of these constructors and shares it amongst all uses.
A word is 4 bytes on a ...
what is the difference between const_iterator and iterator? [duplicate]
...); dereferencing it returns a reference to a constant value (const T&) and prevents modification of the referenced value: it enforces const-correctness.
When you have a const reference to the container, you can only get a const_iterator.
Edited: I mentionned “The const_iterator returns const...