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Why do we use volatile keyword? [duplicate]
... do is this,
volatile int some_int = 100; //note the 'volatile' qualifier now!
In other words, I would explain this as follows:
volatile tells the compiler that,
"Hey compiler, I'm volatile and, you
know, I can be changed by some XYZ
that you're not even aware of. That
XYZ could be ...
IntelliJ does not show project folders
...new project, IDEA is constantly "this file isn't part of the project...". Now it all makes sense.
– Jared Kipe
Oct 10 '15 at 18:38
...
Setting Environment Variables for Node to retrieve
...ID and USER_KEY from either process.env or some specificed file on disk.
Now, the magic happens when you run the application.
USER_ID=239482 USER_KEY=foobar node app.js
That will pass the user id 239482 and the user key as foobar. This is suitable for testing, however for production, you will pr...
img tag displays wrong orientation
...
I found part of the solution. Images now have metadata that specify the orientation of the photo. There is a new CSS spec for image-orientation.
Just add this to your CSS:
img {
image-orientation: from-image;
}
According to the spec as of Jan 25 2016, Fi...
How to create has_and_belongs_to_many associations in Factory girl
...
Factorygirl has since been updated and now includes callbacks to solve this problem. Take a look at http://robots.thoughtbot.com/post/254496652/aint-no-calla-back-girl for more info.
share...
Rails: update_attribute vs update_attributes
...nd(name.to_s + '=', value)
2616: save(false)
2617: end
and now refer update_attributes and look at its code you get
# File vendor/rails/activerecord/lib/active_record/base.rb, line 2621
2621: def update_attributes(attributes)
2622: self.attributes = attributes
26...
Simplest way to do a fire and forget method in C#?
...
For C# 4.0 and newer, it strikes me that the best answer is now given here by Ade Miller: Simplest way to do a fire and forget method in c# 4.0
Task.Factory.StartNew(() => FireAway());
Or even...
Task.Factory.StartNew(FireAway);
Or...
new Task(FireAway).Start();
...
Get the size of the screen, current web page and browser window
...
This has everything you need to know: Get viewport/window size
but in short:
var win = window,
doc = document,
docElem = doc.documentElement,
body = doc.getElementsByTagName('body')[0],
x = win.innerWidth || docElem.clientWidth || body.clie...
How to compare files from two different branches?
... @Jefromi, this may have changed in a more recent version, but at least now you can use relative paths (e.g. branch1:./file). This is also useful if the file is in a separate location between branches (e.g. git diff branch1:old/path/to/file branch2:new/path/to/file).
– redbm...
Export CSS changes from inspector (webkit, firebug, etc)
...
This project is now abandoned. It's a shame :-(
– Damon Hill
Jul 12 at 11:36
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