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Is there an easy way to return a string repeated X number of times?
I'm trying to insert a certain number of indentations before a string based on an items depth and I'm wondering if there is a way to return a string repeated X times. Example:
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MySQL: Fastest way to count number of rows
...ow count, it doensn't count all rows each time you try to count all rows. (based on primary key's column)
Using PHP to count rows is not very smart, because you have to send data from mysql to php. Why do it when you can achieve the same on the mysql side?
If the COUNT(*) is slow, you should run E...
Decompile .smali files on an APK [duplicate]
...ex file into .smali and binary .xml to human readable xml.
The sequence (based on APK Manager 4.9) is 22 to select the package, and then 9 to decompile it. If you press 1 instead of 9, then you will just unpack it (useful only if you want to exchange .png images).
There is no tool available to d...
Is 'switch' faster than 'if'?
...r [rsp+30h],4
13FE81C6F je testSwitch+0AFh (13FE81CAFh)
A jump table based solution does not use comparison at all.
Either not enough branches to cause the compiler to generate a jump table, or your compiler simply doesn't generate them. I'm not sure which.
EDIT 2014: There has been some dis...
How can you determine how much disk space a particular MySQL table is taking up?
...mysql installed by default:
[you@yourbox]$ ls -lha /var/lib/mysql/<databasename>
based on NIXCRAFT's mysql db location
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Identify duplicates in a List
... elements just get distributed between their two possible result locations based on the relevant bit.
– Holger
Jan 26 '18 at 7:37
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C# - how to determine whether a Type is a number
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How can you downvote me on an answer based on current technology. Maybe in .NET 62, int will be removed - are you going to downvote all answers with int?
– Philip Wallace
Nov 27 '09 at 19:09
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Rails 3: Get Random Record
...
here we go
rails way
#in your initializer
module ActiveRecord
class Base
def self.random
if (c = count) != 0
find(:first, :offset =>rand(c))
end
end
end
end
usage
Model.random #returns single random object
or the second thought is
module ActiveRecord
c...
Is it possible to rename a maven jar-with-dependencies?
...;
</execution>
</executions>
</plugin>
Update: based on your comments, using the built-in descriptor won't work . I believe this is down to a bug in the recent versions of the assembly-plugin - they've removed support for classifiers, but the id is fixed if you use a buil...
How to import a jar in Eclipse
...e a new name in this field, the application client project will be created based on the version of the application client JAR file, and it will use the default location.
In the Target runtime drop-down list, select the application server that you want to target for your development. This selection a...