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Android preferences onclick event
...on="android.intent.action.MAIN"
android:targetPackage="com.example.foo"
android:targetClass="com.example.foo.SomeActivity"
/>
</PreferenceScreen>
you can also use "android:mimetype" to set the mimetype.
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`from … import` vs `import .` [duplicate]
...the other won't. Here is an example: say we have the following structure:
foo.py
mylib\
a.py
b.py
Now, I want to import b.py into a.py. And I want to import a.py to foo. How do I do this? Two statements, in a I write:
import b
In foo.py I write:
import mylib.a
Well, this will gener...
How to use a variable inside a regular expression?
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How to write quantifiers in f-strings: fr"foo{{1,5}}" (double the braces)
– PunchyRascal
Mar 19 at 18:28
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Get the latest record from mongodb collection
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This is how to get the last record from all MongoDB documents from the "foo" collection.(change foo,x,y.. etc.)
db.foo.aggregate([{$sort:{ x : 1, date : 1 } },{$group: { _id: "$x" ,y: {$last:"$y"},yz: {$last:"$yz"},date: { $last : "$date" }}} ],{ allowDiskUse:true })
you can add or remove f...
Proper stack and heap usage in C++?
...hat declared it, you must allocate it on the heap.
class Thingy;
Thingy* foo( )
{
int a; // this int lives on the stack
Thingy B; // this thingy lives on the stack and will be deleted when we return from foo
Thingy *pointerToB = &B; // this points to an address on the stack
Thingy *po...
How do I access properties of a javascript object if I don't know the names?
...ect.keys and Array#forEach which makes this a little easier:
var data = { foo: 'bar', baz: 'quux' };
Object.keys(data); // ['foo', 'baz']
Object.keys(data).map(function(key){ return data[key] }) // ['bar', 'quux']
Object.keys(data).forEach(function (key) {
// do something with data[key]
});
ES...
Appending the same string to a list of strings in Python
...ng of "s". like so list2 = ["mystring" + s for s in mylist] = list2 = ['barfoo', 'barfob', 'barfaz', 'barfunk']
– Paul Tuckett
May 14 '19 at 20:53
1
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Dependency Inject (DI) “friendly” library
... {
this.dep = dependency;
return this;
}
public Foo CreateFoo()
{
return new Foo(this.dep);
}
}
This would allow a user to create a default Foo by writing
var foo = new MyFacade().CreateFoo();
It would, however, be very discoverable that it's possible ...
Is there a way to 'pretty' print MongoDB shell output to a file?
...ut to a file. So, if your find command is in find.js and your database is foo, it would look like this:
./mongo foo find.js >> out.json
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Removing duplicate objects with Underscore for Javascript
...{id: 1, content: 'heeey'},
{id: 2, content: 'woah'},
{id: 1, content:'foo'},
{id: 1, content: 'heeey'},
];
var uniques = _.map(_.groupBy(res,function(doc){
return doc.id;
}),function(grouped){
return grouped[0];
});
//uniques
//[{id: 1, content: 'heeey'},{id: 2, content: 'woah'}]
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