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Batch file to copy files from one folder to another folder
... copy against the original. slower, but for the paranoid.
/h - copy system and hidden files.
/k - copy read-only attributes along with files. otherwise, all files become read-write.
/x - if you care about permissions, you might want /o or /x.
/y - don't prompt before overwriting existing files.
/z -...
JavaScript, elegant way to check nested object properties for null/undefined [duplicate]
a "problem" which i have every now and then is that i have an object e.g. user = {} and through the course of using the app this gets populated. Let's say somwhere, after an AJAX call or something i do this:
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Which is better, return value or out parameter?
...g"));
(Indeed, that's one of the problems with property setters as well, and it's why the builder pattern uses methods which return the builder, e.g. myStringBuilder.Append(xxx).Append(yyy).)
Additionally, out parameters are slightly harder to use with reflection and usually make testing harder t...
htaccess redirect to https://www
...lancer, Passenger application, etc., the %{HTTPS} variable may never be on and cause a rewrite loop. This is because your application is actually receiving plain HTTP traffic even though the client and the proxy/load balancer are using HTTPS. In these cases, check the X-Forwarded-Proto header instea...
Check if a string matches a regex in Bash script
...=~ ^regex$ ]] && echo "matched" || echo "did not match"
where commands after && are executed if the test is successful, and commands after || are executed if the test is unsuccessful.
Note this is based on the solution by Aleks-Daniel Jakimenko in User input date format verification...
Upload files with HTTPWebrequest (multipart/form-data)
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Took the code above and fixed because it throws Internal Server Error 500. There are some problems with \r\n badly positioned and spaces etc. Applied the refactoring with memory stream, writing directly to the request stream. Here is the result:...
Insert into a MySQL table or update if exists
...m what I've found, this method is less problematic for auto-increment keys and other unique key collisions than REPLACE INTO, and it is more efficient.
– Andrew Ensley
May 11 '12 at 21:27
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Wrong syntax highlighting for PHP file in PHPStorm
... what happened but syntax highlighting for one php file stopped to working and also icon next to the file has changed. It shows it's text file instead of PHP .
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Read-only and non-computed variable properties in Swift
...something like the following in Objective-C. I have readonly properties, and they cannot be individually changed. However, using a specific method, the properties are changed in a logical way.
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How to properly document S4 class slots using Roxygen2?
For documenting classes with roxygen(2), specifying a title and description/details appears to be the same as for functions, methods, data, etc. However, slots and inheritance are their own sort of animal. What is the best practice -- current or planned -- for documenting S4 classes in roxygen2?
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