大约有 15,474 项符合查询结果（耗时：0.0281秒） [XML]
Detect if value is number in MySQL
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If your data is 'test', 'test0', 'test1111', '111test', '111'
To select all records where the data is a simple int:
SELECT *
FROM myTable
WHERE col1 REGEXP '^[0-9]+$';
Result: '111'
(In regex, ^ means begin, and $ means end)
To select...
Why do we check up to the square root of a prime number to determine if it is prime?
To test whether a number is prime or not, why do we have to test whether it is divisible only up to the square root of that number?
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How to print a dictionary line by line in Python?
...m including it here in case it can be of value to another. In running nosetest, I also found it helpful to be able to specify the output stream in the call so that sys.stderr could be used instead.
import sys
def dump(obj, nested_level=0, output=sys.stdout):
spacing = ' '
if isinstance(...
How to list only the file names that changed between two commits?
...ff --name-only HEAD~10 HEAD~5
to see the differences between the tenth latest commit and the fifth latest (or so).
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How do I wait for an asynchronously dispatched block to finish?
I am testing some code that does asynchronous processing using Grand Central Dispatch. The testing code looks like this:
13...
Testing the type of a DOM element in JavaScript
Is there a way to test the type of an element in JavaScript?
7 Answers
7
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LIKE vs CONTAINS on SQL Server
...The CONTAINS query should be:
SELECT * FROM table WHERE CONTAINS(Column, 'test');
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How to implement if-else statement in XSLT?
...g <xsl:choose> tag:
<xsl:choose>
<xsl:when test="$CreatedDate > $IDAppendedDate">
<h2> mooooooooooooo </h2>
</xsl:when>
<xsl:otherwise>
<h2> dooooooooooooo </h2>
</xsl:otherwi...
ExpressJS How to structure an application?
....js application.
focusaurus/express_code_structure is the repo with the latest code for this. Pull requests welcome.
Here's a snapshot of the README since stackoverflow doesn't like just-a-link answers. I'll make some updates as this is a new project that I'll continue updating, but ultimately the...
How to check if a Unix .tar.gz file is a valid file without uncompressing?
...per comment. Thanks zrajm!
Edit as per comment. Thanks Frozen Flame! This test in no way implies integrity of the data. Because it was designed as a tape archival utility most implementations of tar will allow multiple copies of the same file!
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