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Possible heap pollution via varargs parameter
...iler converts it to
public static <T> void foo(List<T>[] bar) then to
public static void foo(List[] bar)
The danger then arises that you'll mistakenly assign incorrect values into the list and the compiler will not trigger any error. For example, if T is a String then the following co...
postgresql - sql - count of `true` values
...
SELECT COALESCE(sum(CASE WHEN myCol THEN 1 ELSE 0 END),0) FROM <table name>
or, as you found out for yourself:
SELECT count(CASE WHEN myCol THEN 1 END) FROM <table name>
...
How to fix getImageData() error The canvas has been tainted by cross-origin data?
...to hoover up images from the remote dropbox image url, into my canvas, and then submit the image data back into my server. All in javascript
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How do I call Objective-C code from Swift?
... If you have an existing class that you'd like to use, perform Step 2 and then skip to Step 5. (For some cases, I had to add an explicit #import <Foundation/Foundation.h to an older Objective-C File.)
Step 1: Add Objective-C Implementation -- .m
Add a .m file to your class, and name it Custom...
What is Shelving in TFS?
...and go fix the bug. You can shelve your work on the feature, fix the bug, then come back and unshelve to work on your changes later.
Sharing Changesets: If you want to share a changeset of code without checking it in, you can make it easy for others to access by shelving it. This could be used whe...
What is the copy-and-swap idiom?
...g the copy-constructor's functionality to create a local copy of the data, then takes the copied data with a swap function, swapping the old data with the new data. The temporary copy then destructs, taking the old data with it. We are left with a copy of the new data.
In order to use the copy-and-...
Round a double to 2 decimal places [duplicate]
...e value is 200.3456 , it should be formatted to 200.34 .
If it is 200 , then it should be 200.00 .
13 Answers
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How do I hide javascript code in a webpage?
... to run in a browser from a determined viewer. If the browser can run it, then any determined person can view/run it also.
But, if you put your javascript in an external javascript file that is included with:
<script type="text/javascript" src="http://mydomain.com/xxxx.js"></script>
...
How do I close an open port from the terminal on the Mac?
...habit. As I recall, you should first just use kill PID(which implies -15), then try -2 and -1. -9 is the last resort only if every other options failed to work.
– Meow
Oct 8 '14 at 8:31
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Convert absolute path into relative path given a current directory using Bash
...record that we went back, with correct / handling
if [[ -z $result ]]; then
result=".."
else
result="../$result"
fi
done
if [[ $common_part == "/" ]]; then
# special case for root (no common path)
result="$result/"
fi
# since we now have identified the common pa...