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Rails how to run rake task
... answered Apr 12 '11 at 21:24
Andrew MarshallAndrew Marshall
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Docker EXPOSE a port only to Host
Is docker capable of exposing a port only to the host and not to the outside.
1 Answer
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Read each line of txt file to new array element
I am trying to read every line of a text file into an array and have each line in a new element.
My code so far.
11 Answe...
How to see if an NSString starts with a certain other string?
...Why 5? This is not an NSArray... Index 4 is the 4th character not the 5th! And have you EVER seen Http or hTtP? Case sensitive is not relevant. Also the question was about checking if the string begins with http not about the string being shorter than 4 characters. hasPrefix: is better but this work...
Replace Default Null Values Returned From Left Outer Join
...ables using a left outer join. Many times, there is no data in the second and third tables and so I get a null which I think is the default for left outer join. Is there a way to replace the default values in the select statement? I have a workaround in that I can select into a table variable but...
Interface defining a constructor signature?
...n here - specifically to show how you could use an abstract base class in tandem with your existing Interface and maybe cut down on the amount of refactoring needed in the future for similar situations. This concept has already been hinted at in some of the comments but I thought it would be worth ...
Bootstrap: Open Another Modal in Modal
... Items later in the page markup have a naturally higher z-index and will stack on top of items that appeared earlier in the markup. Unless you set an explicit z-index.
– H Dog
May 18 '16 at 20:57
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What does a \ (backslash) do in PHP (5.3+)?
...mbol is used in namespaces. It is the start symbol to indicate a namespace and also serves as a separator between sub-namespace names.
See official documentation about
namespacing.
Opcache
Additionally in PHP 7.0+ some functions are replaced with opcodes by OPCache, which makes these specific fu...
remove all variables except functions
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You can use the following command to clear out ALL variables. Be careful because it you cannot get your variables back.
rm(list=ls(all=TRUE))
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What's wrong with cplusplus.com?
...the container. Its because std::remove works with a pair of iterators only and does not know anything about the container which actually contains the items. In fact, it's not possible for std::remove to know the underlying container, because there is no way it can go from a pair of iterators to disc...