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Is there any difference between “foo is None” and “foo == None”?
... Hmmm, I think your link changed, unless you were interested in how to call external functions from python
– Pat
May 4 '12 at 20:39
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How do you produce a .d.ts “typings” definition file from an existing JavaScript library?
...initelyTyped/DefinitelyTyped) first. This is a community repo full of literally thousands of .d.ts files and it's very likely the thing you're using is already there.
You should also check TypeSearch (https://microsoft.github.io/TypeSearch/) which is a search engine for NPM-published .d.ts files; th...
Android Layout with ListView and Buttons
..._height="wrap_content" android:id="@+id/testbutton"
android:text="@string/hello" android:layout_alignParentBottom="true" />
<ListView android:layout_width="fill_parent"
android:layout_height="fill_parent" android:id="@+id/list"
android:layout_alignParentTop="true" ...
Check for null in foreach loop
...s; everything else is going to involve much more work (tests, assignments, extra method calls, unnecessary GetEnumerator(), MoveNext(), Dispose() on the iterator, etc).
An if test is simple, obvious, and efficient.
share
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What is the difference between Bower and npm?
...oject repo (while developing), or get them via CDN. Now, you can skip that extra download weight in the repo, and somebody can do a quick bower install and instantly have what they need, locally.
If a Bower dependency then specifies its own dependencies in its bower.json, those'll be downloaded for ...
IOCTL Linux device driver [closed]
...l, which means "input-output control" is a kind of device-specific system call. There are only a few system calls in Linux (300-400), which are not enough to express all the unique functions devices may have. So a driver can define an ioctl which allows a userspace application to send it orders. How...
How to detect if a script is being sourced
I have a script where I do not want it to call exit if it's being sourced.
17 Answers
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Python Sets vs Lists
...move the object creation now. The setup phase of the timeit loops is only called once (docs.python.org/2/library/timeit.html#timeit.Timer.timeit).
– Ellis Percival
Sep 30 '14 at 10:09
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App Inventor 2 中的响应式设计 · App Inventor 2 中文网
...een width as 600 and the button width as 300. As a result, you have the extra resolution to work with in your app design for the tablet.
It’s also possible to take mixed approaches. These can be more confusing and less useful, and we recommend that you use them only in special circumstances. ...
WebAPI Delete not working - 405 Method Not Allowed
...the name of the parameter in my Delete method.
I had
public void Delete(string Questionid)
instead of
public void Delete(string id)
I need to use the id name because that's the name that is declared in my WebApiConfig file. Note the id name in the third and fourth lines:
config...