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How can I implode an array while skipping empty array items?
...
To remove null, false, empty string but preserve 0, etc. use func. 'strlen'
$arr = [null, false, "", 0, "0", "1", "2", "false"];
print_r(array_filter($arr, 'strlen'));
will output:
//Array ( [3] => 0 [4] => 0 [5] => 1 [6] => 2 [7] => false )
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Remove all but numbers from NSString
...t decimal numbers including, for instance, Arabic-Indic digits (١٢٣٤٥ etc). Depending on your application, that could occasionally be a problem, but generally its either good or neutral, and a little shorter to type.
– Rob Napier
Jul 15 '09 at 14:03
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How to sort an ArrayList?
...herModel and have a line like this : return lhs.id > rhs.id ? -1 : .. etc
– user2808054
Jan 12 '18 at 17:54
The c...
Python: finding an element in a list [duplicate]
...hod .index.
For the objects in the list, you can do something like:
def __eq__(self, other):
return self.Value == other.Value
with any special processing you need.
You can also use a for/in statement with enumerate(arr)
Example of finding the index of an item that has value > 100.
for...
Is this the right way to clean-up Fragment back stack when leaving a deeply nested stack?
...ause are loading the Fragment calling onCreateView(), onActivityCreated(), etc. Restoring and Destroing a Fragment instantly is bad. The Fragment can register a receiver for example. This affects the performance.
– VasileM
May 10 '19 at 17:35
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How can I reset a react component including all transitively reachable state?
I occasionally have react components that are conceptually stateful which I want to reset. The ideal behavior would be equivalent to removing the old component and readding a new, pristine component.
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get list of pandas dataframe columns based on data type
...object
dtype: object
In [13]: msk = df.dtypes == np.float64 # or object, etc.
In [14]: msk
Out[14]:
0 False
1 True
2 False
dtype: bool
You can look at just those columns with the desired dtype:
In [15]: df.loc[:, msk]
Out[15]:
1
0 2.3456
Now you can use round (or whateve...
Making your .NET language step correctly in the debugger
... might help.
VS (2008+) can-to run as a non-admin
Do any symbols load at all the second time around? You might test by breaking in (through exception or call System.Diagnostic.Debugger.Break())
Assuming that symbols load, is there a repro that you could send us?
The likely difference is that the s...
MongoDB, remove object from array
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try..
db.mycollection.update(
{'_id': ObjectId("5150a1199fac0e6910000002")},
{ $pull: { "items" : { id: 23 } } },
false,
true
);
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How to create and use resources in .NET
..., before the extension (Account.aspx.en-US.resx, Account.aspx.es-ES.resx...etc).
To retrieve specific entries in the code-behind, simply call this method: GetLocalResourceObject([resource entry key/name]).
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