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What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?
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237
Braces ($var vs. ${var})
In most cases, $var and ${var} are the same:
var=foo
echo $var
# fo...
WebDriver: check if an element exists? [duplicate]
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266
You could alternatively do:
driver.findElements( By.id("...") ).size() != 0
Which saves the...
How to specify an element after which to wrap in css flexbox? [duplicate]
...lex;
flex-wrap: wrap;
}
And on the child you set this:
li:nth-child(2n) {
flex-basis: 100%;
}
This causes the child to make up 100% of the container width before any other calculation. Since to container is set to break in case there is not enough space it does so before and after this ...
What, why or when it is better to choose cshtml vs aspx?
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112
As other people have answered, .cshtml (or .vbhtml if that's your flavor) provides a handler-map...
What is a clean, pythonic way to have multiple constructors in Python?
...{}
>>> f(ar='a')
args: () kwargs: {'ar': 'a'}
>>> f(1,2,param=3)
args: (1, 2) kwargs: {'param': 3}
http://docs.python.org/reference/expressions.html#calls
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java.util.regex - importance of Pattern.compile()?
...id that all .NET Regex objects are cached, which is incorrect. Since .NET 2.0, automatic caching occurs only with static methods like Regex.Matches(), not when you call a Regex constructor directly. ref)
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Why does document.querySelectorAll return a StaticNodeList rather than a real Array?
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82
I believe it to be a philosophical decision of the W3C. The design of the W3C DOM [spec] is quit...
What is the benefit of using “SET XACT_ABORT ON” in a stored procedure?
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234
SET XACT_ABORT ON instructs SQL Server to rollback the entire transaction and abort the batch ...
POST data with request module on Node.JS
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202
EDIT: You should check out Needle. It does this for you and supports multipart data, and a lot...