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Why use apparently meaningless do-while and if-else statements in macros?
...ded behavior with simple 'if' statements:
#define FOO(x) f(x); g(x)
if (test) FOO( baz);
expands to:
if (test) f(baz); g(baz);
which is syntactically correct so there's no compiler error, but has the probably unintended consequence that g() will always be called.
...
Strip HTML from strings in Python
... make iframes."
Understand the properties of your tag stripper! Run fuzz tests on it! Here is the code I used to do the research for this answer.
sheepish note - The question itself is about printing to the console, but this is the top Google result for "python strip html from string", so that's...
How to make an Android Spinner with initial text “Select One”?
...pter to display the prompt string for position less than 0.
This has been tested on Android 1.5 through 4.2, but buyer beware! Because this solution relies on reflection to call the private AdapterView.setNextSelectedPositionInt() and AdapterView.setSelectedPositionInt(), it's not guaranteed to wor...
Does JavaScript have the interface type (such as Java's 'interface')?
...'re doing the right thing, you can work around the quacking-dog problem by testing for the existence of a particular method before trying to use it. Something like
if (typeof(someObject.quack) == "function")
{
// This thing can quack
}
So you can check for all the methods you can use before y...
Named Branches vs Multiple Repositories
...nch per release.
Then, have one clone per release branch for building and testing.
One key note is that even if you use multiple repositories, you should avoid using transplant to move changesets between them because 1) it changes hash, and 2) it may introduce bugs that are very difficult to detec...
START_STICKY and START_NOT_STICKY
...
Hi how I can test START_REDELIVER_INTENT. I just tested START_STICKY and kill the app by recent apps. Then it recall service. But START_REDELIVER_INTENT never called again. Why?
– Asif Mushtaq
Nov 4 ...
Bootstrap 3 Navbar with Logo
...ink as part of the image width. However, this can be fixed easily and I've tested this out and I fairly sure it's the most stable working example on this page. It will resize automatically and works on all browsers.
Just add this to your css and use navbar-brand the same way you would .img-respons...
What is the motivation for bringing Symbols to ES6?
...o account and this way two symbols may be non-unique.
var a1 = Symbol.for("test");
var a2 = Symbol.for("test");
console.log(a1 == a2); //true!
Let's call those symbols "second-type" symbols. They do not intersect with the "first-type" symbols (i.e. the ones defined with Symbol(data)) in any way.
Th...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
...
print "%.0f msec" % ((time() - t0) * 1000)
# also ~/py/np/kmeans/test-kmeans.py
Some notes added 26mar 2012:
1) for cosine distance, first normalize all the data vectors to |X| = 1; then
cosinedistance( X, Y ) = 1 - X . Y = Euclidean distance |X - Y|^2 / 2
is fast. For bit vectors, k...
What does “use strict” do in JavaScript, and what is the reasoning behind it?
...unge, it is a good idea to apply "use strict" alongside comprehensive unit tests and a strictly configured JSHint build task that will give you some confidence that there is no dark corner of your module that will blow up horribly just because you've turned on Strict Mode. Or, hey, here's another o...