大约有 37,908 项符合查询结果（耗时：0.0370秒） [XML]
How to tell which version of a gem a rails app is using
...ns? Do I have rails version 2 or not? Maybe I have rails version 2 and a more advanced bundler? Is this good/bad? (Yes, I know it's bad to have such an old version of rails, I want to know if it's catastrophic to have such a mismatched (if it is) rails and bundler).
– Brend...
master branch and 'origin/master' have diverged, how to 'undiverge' branches'?
...
|
show 3 more comments
762
...
Does Ruby have a string.startswith(“abc”) built in method?
...
|
show 4 more comments
41
...
“Insert if not exists” statement in SQLite
... Perhaps adding ON CONFLICT IGNORE to CREATE TABLE would be a bit more handy
– defhlt
Apr 12 '15 at 13:44
...
What is the difference between varchar and nvarchar?
... there is really no reason to waste time mucking around with code pages anymore.
All modern operating systems and development platforms use Unicode internally. By using nvarchar rather than varchar, you can avoid doing encoding conversions every time you read from or write to the database. Conversi...
“Unknown class in Interface Builder file” error at runtime
...
|
show 10 more comments
183
...
How to use ng-repeat without an html element
...ave the same problem (repeated groups of rows -- one header TR with one or more child TRs, repeated as a group). Trivial with other template engines, hacky at best with Angular it seems.
– Brian Moeskau
Jun 17 '13 at 7:53
...
Where can I find the error logs of nginx, using FastCGI and Django?
...iles to be found, issue the same command using sudo.
You can read a little more here.
share
|
improve this answer
|
follow
|
...
Find region from within an EC2 instance
...9.254/latest/dynamic/instance-identity/document) doesn't appear to work anymore. I get a 404 when I tried to use it. I have the following code which seems to work though:
EC2_AVAIL_ZONE=`curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone`
EC2_REGION="`echo \"$EC2_AVAIL_ZONE...
What's the best way to inverse sort in scala?
...nging the sign, if you sort by some numeric value
list.sortBy(- _.size)
More generally, sorting may be done by method sorted with an implicit Ordering, which you may make explicit, and Ordering has a reverse (not the list reverse below)
You can do
list.sorted(theOrdering.reverse)
If the order...