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Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul
...ion.
From MSDN's "New Recommendations for Using Strings in Microsoft .NET 2.0"
Summary: Code owners previously using the InvariantCulture for string comparison, casing, and sorting should strongly consider using a new set of String overloads in Microsoft .NET 2.0. Specifically, data that is des...
What is this 'Lambda' everyone keeps speaking of?
...hat perform much more useful tasks. For example filter:
var numbers = [1, 2, 3, 4];
var even = [];
// keep all even numbers from above array
for (var i=0; i<numbers.length; i++) {
if (numbers[i] % 2 === 0) {
even.push(numbers[i]);
}
}
alert(even);
// Using the filter method...
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Out of memory errors
An example of misusing large images
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Is there a Pattern Matching Utility like GREP in Windows?
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32 Answers
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TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...样的：
1）首先，先采样RTT，记下最近好几次的RTT值。
2）然后做平滑计算SRTT（ Smoothed RTT）。公式为：（其中的 α 取值在0.8 到 0.9之间，这个算法英文叫Exponential weighted moving average，中文叫：加权移动平均）
SRTT = ( α * ...
Efficient way to remove keys with empty strings from a dict
...
Python 2.X
dict((k, v) for k, v in metadata.iteritems() if v)
Python 2.7 - 3.X
{k: v for k, v in metadata.items() if v is not None}
Note that all of your keys have values. It's just that some of those values are the empty s...
Is an array name a pointer?
...
262
An array is an array and a pointer is a pointer, but in most cases array names are converted t...
The way to check a HDFS directory's size?
...
Prior to 0.20.203, and officially deprecated in 2.6.0:
hadoop fs -dus [directory]
Since 0.20.203 (dead link) 1.0.4 and still compatible through 2.6.0:
hdfs dfs -du [-s] [-h] URI [URI …]
You can also run hadoop fs -help for more ...
How can I use getSystemService in a non-activity class (LocationManager)?
...
286
You need to pass your context to your fyl class..
One solution is make a constructor like this...
What is a Python equivalent of PHP's var_dump()? [duplicate]
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287
To display a value nicely, you can use the pprint module. The easiest way to dump all variable...