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What's the better (cleaner) way to ignore output in PowerShell? [closed]
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I just did some tests of the four options that I know about.
Measure-Command {$(1..1000) | Out-Null}
TotalMilliseconds : 76.211
Measure-Command {[Void]$(1..1000)}
TotalMilliseconds : 0.217
Measure-Command {$(1..1000) > $null}
TotalM...
TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
... * - Add 64 bit support. It now runs on x86_64 and solaris64.
* - I also tested this on vxworks/32and solaris/32 and i386/32 processors.
* - Remove assembly code. I could not measure any performance difference
* on my core2 processor. This also makes the code more portable.
* - Moved defi...
How do I copy items from list to list without foreach?
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For a list of elements
List<string> lstTest = new List<string>();
lstTest.Add("test1");
lstTest.Add("test2");
lstTest.Add("test3");
lstTest.Add("test4");
lstTest.Add("test5");
lstTest.Add("test6");
If you want to copy all the elements
List<string> ...
How do you query for “is not null” in Mongo?
...dding some examples due to interest in this answer
Given these inserts:
db.test.insert({"num":1, "check":"check value"});
db.test.insert({"num":2, "check":null});
db.test.insert({"num":3});
This will return all three documents:
db.test.find();
This will return the first and second documents only:
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Send file using POST from a Python script
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From: https://requests.readthedocs.io/en/latest/user/quickstart/#post-a-multipart-encoded-file
Requests makes it very simple to upload Multipart-encoded files:
with open('report.xls', 'rb') as f:
r = requests.post('http://httpbin.org/post', files={'report.xls': ...
How to base64 encode image in linux bash / shell
...ntents of the file named 'DSC_0251.JPG', rather than the filename itself.
test="$(cat DSC_0251.JPG | base64)"
However, base64 can read from the file itself:
test=$( base64 DSC_0251.JPG )
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Convert a String In C++ To Upper Case
...o the one using the boost libraries, because it was faster (in my informal testing), easier to use, and doesn't have the the problems associated with this solution. Still a good solution for instances where boost can't be used.
– OrangeAlmondSoap
Jan 25 '11 at ...
Query for documents where array size is greater than 1
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I believe this is the fastest query that answers your question, because it doesn't use an interpreted $where clause:
{$nor: [
{name: {$exists: false}},
{name: {$size: 0}},
{name: {$size: 1}}
]}
It means "all documents except those with...
How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?
...and Max Connections for popular browsers. The data is gathered by running tests on users "in the wild," so it will stay up to date.
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Elegant Python function to convert CamelCase to snake_case?
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This solution fails in these cases: _test_Method, __test__Method, _Test, getHTTPresponseCode, __CamelCase, and _Camel_Case.
– freegnu
May 16 '11 at 14:12
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