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Difference between no-cache and must-revalidate
...
That's how I'm seeing it now. The interesting part is my last para, without an ETag or Last-Modified, the agent has nothing to use to validate what it has in cache and must download the whole payload again. So when the RFC says "revalidate" that prob...
How do I pass the this context to a function?
...
var obj_a = {
name: "FOO"
};
var obj_b = {
name: "BAR!!"
};
Now you can call:
myfunc.call(obj_a);
Which would alert FOO. The other way around, passing obj_b would alert BAR!!. The difference between .call() and .apply() is that .call() takes a comma separated list if you're passing...
Default initialization of std::array?
...ue_initialized link but I believe VC12 (VS2013) has a much better support now.
– v.oddou
Jun 4 '15 at 7:01
1
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Create new tmux session from inside a tmux session
... Wed Jan 13 11:31:38 2016) [204x54]
New session from within tmux
We are now inside or better known as attached to our target session. If we try to create a new session while attached it will result in a nesting error.
$ tmux new -s bar
> sessions should be nested with care, unset $TMUX to fo...
Difference between onStart() and onResume()
...which does it and it does it very efficiently (assuming the app developer knows what they're doing and also codes efficiently). If you do a lot of Android development you'll realise why things work the way they do - it's not 100% perfect but it's pretty good.
– Squonk
...
Class type check in TypeScript
...;Fish>pet).swim !== undefined;
}
// Both calls to 'swim' and 'fly' are now okay.
if (isFish(pet)) {
pet.swim();
}
else {
pet.fly();
}
See more at:
https://www.typescriptlang.org/docs/handbook/advanced-types.html
sh...
Why should a function have only one exit-point? [closed]
...y a single exit point - you have a single path through the method and you know where to look for the exit. On the minus side if you use indentation to represent nesting, your code ends up massively indented to the right, and it becomes very difficult to follow all the nested scopes.
Another is that...
What are the lesser known but useful data structures?
There are some data structures around that are really useful but are unknown to most programmers. Which ones are they?
83 A...
Java: How to convert List to Map
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You know the size beforehand so you can do Map<Key,Item> map = new HashMap<Key,Item>(list.size());
– Víctor Romero
Jun 5 '13 at 12:18
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How to pass a variable from Activity to Fragment, and pass it back?
... args = getArguments();
int index = args.getInt("index", 0);
If you want now communicate from your fragment with your activity (sending or not data), you need to use interfaces. The way you can do this is explained really good in the documentation tutorial of communication between fragments. Becau...