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Correct Bash and shell script variable capitalization
...numRecordsProcessed, veryInconsistent_style
See also:
The Open Group Base Specifications Issue 7 - Environment Variables
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What is Python used for? [closed]
...gs like "hello" + 5 to get "hello5".
Python is object oriented, with class-based inheritance. Everything is an object (including classes, functions, modules, etc), in the sense that they can be passed around as arguments, have methods and attributes, and so on.
Python is multipurpose: it is not spec...
How to resize images proportionally / keeping the aspect ratio?
... width
$(this).css("height", height * ratio); // Scale height based on ratio
height = height * ratio; // Reset height to match scaled image
width = width * ratio; // Reset width to match scaled image
}
// Check if current height is larger t...
Flatten an Array of Arrays in Swift
...into a 1D array or remove nil values, not both. It determines which to do based on if the 1st-level array's Element is an array or optional— so if you pass it a 2D array of optionals (e.g. [[Int?]]) it'll choose to flatten it to 1D (e.g. [Int?]). To both flatten to 1-D and remove 2nd-level nils,...
Clustered vs Non-Clustered
...t the clustered index determines the physical order of the rows in the database. In other words, applying the clustered index to PersonId means that the rows will be physically sorted by PersonId in the table, allowing an index search on this to go straight to the row (rather than a non-clustered in...
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:
...
Just what is Java EE really? [closed]
...?
With the eventual release of modularity support we'll just have a small base JRE with many things separately installable as packages. Perhaps one day many or even all classes that now make up Java EE will be such package as well. Time will tell.
Why are there so many Java EE offerings when there...
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...
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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