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enum - getting value of enum on string conversion
...
return str(self.value)
x = 1
y = 2
Demo:
>>> from enum import Enum
>>> class D(Enum):
... def __str__(self):
... return str(self.value)
... x = 1
... y = 2
...
>>> D.x
<D.x: 1>
>>> print(D.x)
1
...
A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception pro
...uationOptions.OnlyOnFaulted);
}
With the above, you can prevent any task from tearing down the app, and logging it, via:
Task.Factory.StartNew( () =>
{
// Do your work...
}).LogExceptions();
Alternatively, you can subscribe to the TaskScheduler.UnobservedTaskException and hand...
Create an empty data.frame
...is just a bit safer in the sense that you'll have the correct column types from the beginning, hence if your code relies on some column type checking, it will work even with a data.frame with zero rows.
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When do you use the “this” keyword? [closed]
...ass itself as a parameter to other methods
To have an object return itself from a method
To declare indexers
To declare extension methods
To pass parameters between constructors
To internally reassign value type (struct) value.
To invoke an extension method on the current instance
To cast itself to ...
Array.Add vs +=
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Because it's inherited from IList. Try Get-Member -InputObject @() will show this Add Method int IList.Add(System.Object value)
– Frode F.
Jun 29 '17 at 12:21
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Syntax error on print with Python 3 [duplicate]
... an error. To avoid this, it is a good practice to import print function:
from __future__ import print_function
Now your code works on both 2.x & 3.x.
Check out below examples also to get familiar with print() function.
Old: print "The answer is", 2*2
New: print("The answer is", 2*2)
Old: ...
How to refresh an IFrame using Javascript?
...
provided the iframe is loaded from the same domain, you can do this, which makes a little more sense:
iframe.contentWindow.location.reload();
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i...
How to loop through key/value object in Javascript? [duplicate]
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Beware of properties inherited from the object's prototype (which could happen if you're including any libraries on your page, such as older versions of Prototype). You can check for this by using the object's hasOwnProperty() method. This is generally a g...
Converting list to *args when calling function [duplicate]
...eportlib.Report(*timeseries_list)
(notice the * before timeseries_list)
From the python documentation:
If the syntax *expression appears in the function call, expression
must evaluate to an iterable. Elements from this iterable are treated
as if they were additional positional arguments; ...
Is it possible to iterate through JSONArray? [duplicate]
...lso I believe it'll just be a getter fetching a value which is not mutable from outside the instance, setting a variable would just allocate more memory 8-).
– Mathijs Segers
Jan 23 '15 at 13:14
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