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Difference between single and double square brackets in Bash
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Single [] are posix shell compliant condition tests.
Double [[]] are an extension to the standard [] and are supported by bash and other shells (e.g. zsh, ksh). They support extra operations (as well as the standard posix operations). For example: || instead of -o and r...
How can I pretty-print JSON in a shell script?
...me issue, try this value: 1e1000. Note that python -mjson.tool fails this test badly in that it produces Infinity, which is not even JSON.
– peak
Sep 4 '15 at 2:38
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“NODE_ENV” is not recognized as an internal or external command, operable command or batch file
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People who couldn't make it work, "test-unit": "SET NODE_ENV=test & mocha --require co-mocha 'test.js'" wrong "test-unit": "SET NODE_ENV=test & mocha --require co-mocha test.js" true. You need to remove the ' ' around the js file.
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How do I select text nodes with jQuery?
...ype == 3) {
if (includeWhitespaceNodes || nonWhitespaceMatcher.test(node.nodeValue)) {
textNodes.push(node);
}
} else {
for (var i = 0, len = node.childNodes.length; i < len; ++i) {
getTextNodes(node.childNodes[i]);
...
When should I use RequestFactory vs GWT-RPC?
...ing other disadvantages of GWT in general:
Impossible to run integration tests (GWT client code + remote server) with provided JUnit support <= all JSNI has to be mocked (e.g. localStorage), SOP is an issue.
No support for testing setup - headless browser + remote server <= no simple headl...
Django dynamic model fields
...ill Hardy's talk at DjangoCon 2011 (watch it!) are nevertheless robust and tested in production (relevant source code).
First to implement this was Michael Hall.
Yes, this is magic, with these approaches you can achieve fully dynamic Django apps, models and fields with any relational database back...
How to remove elements from a generic list while iterating over it?
...e(i));
Alternately, you can use the RemoveAll method with a predicate to test against:
safePendingList.RemoveAll(item => item.Value == someValue);
Here's a simplified example to demonstrate:
var list = new List<int>(Enumerable.Range(1, 10));
Console.WriteLine("Before:");
list.ForEach(...
How can I pass a member function where a free function is expected?
... char * argv[])
{
...
aClass a;
auto fp = std::bind(&aClass::test, a, _1, _2);
function1(fp);
return 0;
}
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Most efficient way to remove special characters from string
...s if you would use it on a large string.
Edit:
I made a quick performance test, running each function a million times with a 24 character string. These are the results:
Original function: 54.5 ms.
My suggested change: 47.1 ms.
Mine with setting StringBuilder capacity: 43.3 ms.
Regular expression: ...
Why is there a difference in checking null against a value in VB.NET and C#?
...e by an unfortunate belief that it is confusing to have different means of testing equality yield different results, and such confusion might be avoided by having the different forms of equality yield the same results whenever possible.
In reality, the fundamental cause of confusion is a misguided ...