大约有 7,000 项符合查询结果(耗时:0.0499秒) [XML]
Best practice: PHP Magic Methods __set and __get [duplicate]
...
@Matthieu: As noted in the answer, $foo->bar would simply call $this->get_bar(), which is a getter and can be changed to do whatever you need it to.
– FtDRbwLXw6
Feb 13 '13 at 0:09
...
How can I start an interactive console for Perl?
...:
> gmtime(2**30)
gmtime(2**30) = Sat Jan 10 13:37:04 2004
> $x = 'foo'
$x = 'foo' = foo
> $x =~ s/o/a/g
$x =~ s/o/a/g = 2
> $x
$x = faa
share
|
improve this answer
|
...
How to use a variable inside a regular expression?
...
How to write quantifiers in f-strings: fr"foo{{1,5}}" (double the braces)
– PunchyRascal
Mar 19 at 18:28
...
What's the difference between String(value) vs value.toString()
...the object passed, for example:
var o = { toString: function () { return "foo"; } };
String(o); // "foo"
On the other hand, if an identifier refers to null or undefined, you can't use the toString method, it will give you a TypeError exception:
var value = null;
String(null); // "null"
value...
Get the latest record from mongodb collection
...
This is how to get the last record from all MongoDB documents from the "foo" collection.(change foo,x,y.. etc.)
db.foo.aggregate([{$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...
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
...
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
share
|
improve this answer
|
...
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.
...
`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...
