大约有 30,000 项符合查询结果（耗时：0.0281秒） [XML]
How do you get a timestamp in JavaScript?
...s. You could work with milliseconds but as soon as you pass a value to say m>PHP m>, the m>PHP m> native functions will probably fail. So to be sure I always use the seconds, not milliseconds.
This will give you a Unix timestamp (in seconds):
var unix = Math.round(+new Date()/1000);
This will give you the...
Using arrays or std::vectors in C++, what's the performance gap?
...ilure to reserve will lead to at most a constant factor increase in vector content copies. A 1.5 m>ex m>ponential vector growth factor would mean ~3x as many copies if you failed to reserve().
– Yakk - Adam Nevraumont
Dec 5 '12 at 12:21
...
Random float number generation
...ote that the both limits are inclusive.
– dmckee --- m>ex m>-moderator kitten
Mar 26 '09 at 16:52
15
T...
count (non-blank) lines-of-code in bash
... by 0 or more whitespace characters, followed by the end of a line (ie. no content other then whitespace), and display a count of matching lines (-c) instead of the matching lines themselves.
An advantage of this method over methods that involve piping into wc, is that you can specify multiple file...
Response Content type as CSV
... tm>ex m>t/csv is the most appropriate type.
You should also consider adding a Content-Disposition header to the response. Often a tm>ex m>t/csv will be loaded by a Internet m>Ex m>plorer directly into a hosted instance of m>Ex m>cel. This may or may not be a desirable result.
Response.AddHeader("Content-Dispositio...
What does enctype='multipart/form-data' mean?
... which are the bytes 61 CF 89 62 in UTF-8.
Create files to upload:
echo 'Content of a.txt.' > a.txt
echo '<!DOCTYPE html><title>Content of a.html.</title>' > a.html
# Binary file containing 4 bytes: 'a', 1, 2 and 'b'.
printf 'a\xCF\x89b' > binary
Run our little echo ...
Is there a naming convention for git repositories?
...
If you plan to create a m>PHP m> package you most likely want to put in on Packagist to make it available for other with composer.
Composer has the as naming-convention to use vendorname/package-name-is-lowercase-with-hyphens.
If you plan to create a J...
MySQL OPTIMIZE all tables?
...n any SQL IDE connected to your database.
Notice: this code WON'T work on m>php m>myadmin.
How it works
It runs a show tables statement and stores it in a prepared statement. Then it runs a optimize table in the selected set.
You can control which tables to optimize by setting a different value in th...
How do I do a multi-line string in node.js?
...unction definition, including any comments. A regular m>ex m>pression grabs the content of the comment.
Yes, it's a hack. Inspired by a throwaway comment from Dominic Tarr.
note: The module (as of 2012/13/11) doesn't allow whitespace before the closing ***/, so you'll need to hack it in yourself...
Static linking vs dynamic linking
...AM, and cache space. Of course, if your dynamic linker is insufficiently flm>ex m>ible there is a risk of DLL hell.
Dynamic linking means that bug fixes and upgrades to libraries propagate to improve your product without requiring you to ship anything.
Plugins always call for dynamic linking.
Static link...