大约有 31,840 项符合查询结果（耗时：0.0409秒） [XML]
Using ls to list directories and their total sizes
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works great, one small addition du -sh * | sort -rh (-r for listing bigger folders first)
– artm
Sep 25 '17 at 5:39
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How to retry after exception?
...problem with that specific item you will eventually continue onto the next one, thus:
for i in range(100):
for attempt in range(10):
try:
# do thing
except:
# perhaps reconnect, etc.
else:
break
else:
# we failed all the attempts - deal with the consequences.
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php is null or empty?
... a strict === check will also check for type and fail if you use different ones. That's the reason you should be consistence in your return values. If you normaly return a string in a method like getName(), you shouldn't get null when it's empty, but more likely an emtpy string $user->getName() =...
Does return stop a loop?
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In most cases (including this one), return will exit immediately. However, if the return is in a try block with an accompanying finally block, the finally always executes and can "override" the return in the try.
function foo() {
try {
for (...
How to kill/stop a long SQL query immediately?
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This one is worked for me in Management studio. Thanks
– Vishvanathsinh Solanki
Oct 16 '18 at 6:34
add a ...
How to extract year and month from date in PostgreSQL without using to_char() function?
...)::date
It will maintain the date format with all months starting at day one.
Example:
2016-08-01
2016-09-01
2016-10-01
2016-11-01
2016-12-01
2017-01-01
2nd Option
to_char(timestamp_column, 'YYYY-MM')
This solution proposed by @yairchu worked fine in my case. I really wanted to discard 'day...
Regular Expression to reformat a US phone number in Javascript
...mat (replace, not validate - there are many references for validating) a phone number for display in Javascript. Here's an example of some of the data:
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Remove DEFINER clause from MySQL Dumps
I have a MySQL dump of one of my databases. In it, there are DEFINER clauses which look like,
24 Answers
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mysqldump - Export structure only without autoincrement
...n | sed 's/ AUTO_INCREMENT=[0-9]*\b//' > <filename>.sql
As mentioned by others, If you want sed to works properly, add the g (for global replacement) parameter like this :
mysqldump -u root -p -h <db-host> --opt <db-name> -d --single-transaction | sed 's/ AUTO_INCREMENT=[0-9...
jQuery disable a link
Anyone know how to disable a link in jquery WITHOUT using return false; ?
17 Answers
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