大约有 44,000 项符合查询结果（耗时：0.0598秒） [XML]
Extract directory from path
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answered Jun 28 '11 at 16:16
MatthieuMatthieu
14.9k1010 gold badges5353 silver badges8383 bronze badges
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Circle-Rectangle collision detection (intersection)
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193
There are only two cases when the circle intersects with the rectangle:
Either the circle's ...
Why use String.Format? [duplicate]
...er of reasons:
Readability
string s = string.Format("Hey, {0} it is the {1}st day of {2}. I feel {3}!", _name, _day, _month, _feeling);
vs:
string s = "Hey," + _name + " it is the " + _day + "st day of " + _month + ". I feel " + feeling + "!";
Format Specifiers
(and this includes the fact y...
Fastest way to count exact number of rows in a very large table?
...SQL Server solutions but don't use COUNT(*) = out of scope
Notes:
COUNT(1) = COUNT(*) = COUNT(PrimaryKey) just in case
Edit:
SQL Server example (1.4 billion rows, 12 columns)
SELECT COUNT(*) FROM MyBigtable WITH (NOLOCK)
-- NOLOCK here is for me only to let me test for this answer: no more, no...
Toggle Checkboxes on/off
...!checkBoxes.prop("checked"));
});
});
Before jQuery 1.6, when we only had attr() and not prop(), we used to write:
checkBoxes.attr("checked", !checkBoxes.attr("checked"));
But prop() has better semantics than attr() when applied to "boolean" HTML attributes, so it is usuall...
Upgrading Node.js to latest version
...or telling me that I don't have the needed version of Node.js (I have v0.4.11 and v0.4.12 is needed).
33 Answers
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How to add url parameters to Django template url tag?
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174
First you need to prepare your url to accept the param in the regex:
(urls.py)
url(r'^panel/p...
Laravel Schema onDelete set null
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answered Sep 10 '14 at 12:46
JohanJohan
3,49911 gold badge99 silver badges77 bronze badges
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