大约有 46,000 项符合查询结果（耗时：0.0597秒） [XML]
Cron jobs and random times, within given hours
I need the ability to run a PHP script 20 times a day at completely random times. I also want it to run only between 9am - 11pm.
...
Ignore modified (but not committed) files in git?
...
277
check out the git-update-index man page and the --assume-unchanged bit and related.
when I ha...
Git Push Error: insufficient permission for adding an object to repository database
...
882
+50
Repair Pe...
Run a single migration file
...
244
You can just run the code directly out of the ruby file:
rails console
>> require "db/m...
Why switch is faster than if
...
DanielDaniel
25.2k1616 gold badges8484 silver badges128128 bronze badges
...
How do I ignore files in Subversion?
...is answer has been updated to match SVN 1.8 and 1.9's behaviour)
You have 2 questions:
Marking files as ignored:
By "ignored file" I mean the file won't appear in lists even as "unversioned": your SVN client will pretend the file doesn't exist at all in the filesystem.
Ignored files are specifie...
No route matches “/users/sign_out” devise rails 3
...
29 Answers
29
Active
...
How to design a multi-user ajax web application to be concurrently safe
... a connected user efficiently. Observer-Pattern is your friend for this.
2. Client-Side:
A javascript client that is able to have a long-running HTTP-Connection to said server above, or uses lightweight polling.
A javascript artifact-updater component that refreshes the sites content when the co...
Performance of static methods vs instance methods
...come up with normal use than those which come up with strange use.
Number 2. Makes no difference. There's a certain amount of per-class cost for each member it terms of both how much metadata there is, how much code there is in the actual DLL or EXE file, and how much jitted code there'll be. This ...
In SQL, what's the difference between count(column) and count(*)?
...
236
count(*) counts NULLs and count(column) does not
[edit] added this code so that people can ru...