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Await on a completed task same as task.Result?
... different; await does not wrap the exception in an AggregateException. Ideally, asynchronous code should never have to deal with AggregateException at all, unless it specifically wants to.
The second reason is a little more subtle. As I describe on my blog (and in the book), Result/Wait can cause ...
How to copy a dictionary and only edit the copy
...re making them refer to the same exact dict object, so when you mutate it, all references to it keep referring to the object in its current state.
If you want to copy the dict (which is rare), you have to do so explicitly with
dict2 = dict(dict1)
or
dict2 = dict1.copy()
...
Best way to parse command-line parameters? [closed]
What's the best way to parse command-line parameters in Scala?
I personally prefer something lightweight that does not require external jar.
...
namedtuple and default values for optional keyword arguments
...lds)
>>> Node()
Node(val=None, left=None, right=None)
Order
In all versions of Python, if you set fewer default values than exist in the namedtuple, the defaults are applied to the rightmost parameters. This allows you to keep some arguments as required arguments.
>>> Node.__ne...
git update-index --assume-unchanged on directory
...perfectly with filenames with spaces.
This command will get git to assume all files in and under the listed directory are unchanged:
find path/to/dir -type f -exec git update-index --assume-unchanged '{}' \;
Find takes every argument after -exec until ; (which you have to escape lest your shell ...
Why do we need to install gulp globally and locally?
2 manuals about gulp say that I need to install gulp first globally (with -g flag) and then one more time locally. Why do I need this?
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Why can't I use float value as a template parameter?
...
The current C++ standard does not allow float (i.e. real number) or character string literals to be used as template non-type parameters. You can of course use the float and char * types as normal arguments.
Perhaps the author is using a compiler that doesn...
Sending websocket ping/pong frame from browser
...chrome related to ping-pong). Or is it just a design pattern (e.g. I literally send "ping" or any other string to the server and have it respond). Is ping-pong at all related to continuation frames?
...
Comparing arrays in JUnit assertions, concise built-in way?
...dResult, result );
If this method is not available, you may have accidentally imported the Assert class from junit.framework.
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what is reverse() in Django
...!-- django <= 1.4 -->
<a href="{% url url_name %}">link which calls some_view</a>
<!-- django >= 1.5 or with {% load url from future %} in your template -->
<a href="{% url 'url_name' %}">link which calls some_view</a>
This will be rendered as:
<a href="...