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Facebook Android Generate Key Hash
... answered Mar 15 '11 at 0:02
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Why is string concatenation faster than array join?
...ring concatenation. Beginning with version 1.0, the array technique is actually slower than using the plus operator in all cases. Other browsers have also optimized string concatenation, so Safari, Opera, Chrome, and Internet Explorer 8 also show better performance using the plus operator. Internet ...
Why should I prefer to use member initialization lists?
...tyle. For class members which are classes, then it avoids an unnecessary call to a default constructor. Consider:
class A
{
public:
A() { x = 0; }
A(int x_) { x = x_; }
int x;
};
class B
{
public:
B()
{
a.x = 3;
}
private:
A a;
};
In this case, the construct...
Get element inside element by class and ID - JavaScript
...er than worrying about browser compatibility yourself (let someone else do all the work). If you want just a library to do that, then Sizzle will work great. In Sizzle, this would be be done like this:
Sizzle("#foo .bar")[0].innerHTML = "Goodbye world!";
jQuery has the Sizzle library built-in...
How ListView's recycling mechanism works
...ter inflater = (LayoutInflater) App.getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(getContainerView(), parent, false);
holder = getHolder(position, view, parent);
holder.setTag(tag);
view.setTag(holder);
} ...
CSRF Token necessary when using Stateless(= Sessionless) Authentication?
...ps)
http://www.jamesward.com/2013/05/13/securing-single-page-apps-and-rest-services
"The easiest way to do authentication without risking CSRF vulnerabilities is to simply avoid using cookies to identify the user"
http://sitr.us/2011/08/26/cookies-are-bad-for-you.html
"The biggest problem with CSR...
How can I search (case-insensitive) in a column using LIKE wildcard?
... trees
WHERE trees.`title` COLLATE UTF8_GENERAL_CI LIKE '%elm%'
Actually, if you add COLLATE UTF8_GENERAL_CI to your column's definition, you can just omit all these tricks: it will work automatically.
ALTER TABLE trees
MODIFY COLUMN title VARCHAR(…) CHARACTER
SET UTF8 COLLATE UTF8_GE...
Test if object implements interface
...nan's answer I ended up using recently for types obtained at runtime:
if (serviceType.IsInstanceOfType(service))
{
// 'service' does implement the 'serviceType' type
}
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How can I output leading zeros in Ruby?
...counter is known (e.g., n = 3 for counters 1..876), you can do
str = "file_" + i.to_s.rjust(n, "0")
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What are all possible pos tags of NLTK?
How do I find a list with all possible pos tags used by the Natural Language Toolkit (nltk)?
8 Answers
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