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What is this weird colon-member (“ : ”) syntax in the constructor?
...entry is that,
All other things being equal, your code will run faster if you use initialization lists rather than assignment.
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Get Unix Epoch Time in Swift
How do you get the seconds from epoch in Swift?
5 Answers
5
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Query to list all stored procedures
...tabaseName.INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_TYPE = 'PROCEDURE'
If for some reason you had non-system stored procedures in the master database, you could use the query (this will filter out MOST system stored procedures):
SELECT *
FROM [master].INFORMATION_SCHEMA.ROUTINES
WHERE ROUTI...
Numpy matrix to array
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If you'd like something a bit more readable, you can do this:
A = np.squeeze(np.asarray(M))
Equivalently, you could also do: A = np.asarray(M).reshape(-1), but that's a bit less easy to read.
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How can I get the length of text entered in a textbox using jQuery?
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If your textbox has an id attribute of "mytextbox", then you can get the length like this:
var myLength = $("#mytextbox").val().length;
$("#mytextbox") finds the textbox by its id.
.val() gets the value of the input eleme...
Changing every value in a hash in Ruby
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If you want the actual strings themselves to mutate in place (possibly and desirably affecting other references to the same string objects):
# Two ways to achieve the same result (any Ruby version)
my_hash.each{ |_,str| str....
Detecting input change in jQuery?
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UPDATED for clarification and example
examples: http://jsfiddle.net/pxfunc/5kpeJ/
Method 1. input event
In modern browsers use the input event. This event will fire when the user is typing into a text field, pasting, undoing, basically a...
What are .a and .so files?
...ically linked i.e when you compile your program with -c option in gcc. So, if there's any change in library, you need to compile and build your code again.
The advantage of .so (shared object) over .a library is that they are linked during the runtime i.e. after creation of your .o file -o option ...
What is Android keystore file, and what is it used for?
...estricted to just signing .apk files, you can use it to store personal certificates, sign data to be transmitted and a whole variety of authentication.
In terms of what you do with it for Android and probably what you're looking for since you mention signing apk's, it is your certificate. You are b...
How to edit multi-gigabyte text files? Vim doesn't work =( [closed]
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If you are on *nix (and assuming you have to modify only parts of file (and rarely)), you may split the files (using the split command), edit them individually (using awk, sed, or something similar) and concatenate them after...