大约有 16,000 项符合查询结果（耗时：0.0416秒） [XML]
Is there a performance gain in using single quotes vs double quotes in ruby?
...ferences that are not significant and due to other factors (GC kicking in, etc.); remember, there can't be any difference in this case! Micro benchmarks like these are difficult to get right. See my gem fruity for a decent tool for this.
Note that if there is interpolation of the form "...#{...}......
Architecture for merging multiple user accounts together
...ke, changing your password, termination of service, account balance is low etc... It's almost like the web's social security number system but with the ability of communication. Culturally: I think it's reasonable to assume that an email is a pretty unique identity across OAuth authentication servic...
Rails 3.1: Engine vs. Mountable App
... gem in Gemfile is enough for the parent app to inherit the models, routes etc. The engine routes are specified as:
# my_engine/config/routes.rb
Rails.application.routes.draw do
# whatever
end
No namespacing of models, controllers, etc. These are immediately
accessible to the parent app...
Change default global installation directory for node.js modules in Windows?
...|npm-cache) (do this as an administrator):
create an [NODE_INSTALL_PATH]\etc\ directory
this is needed before you try npm config --global ... actions
create the global (admin) location(s) for npm modules
C:\ProgramData\npm-cache - npm modules will go here
C:\ProgramData\npm - binary scripts f...
Chrome hangs after certain amount of data transfered - waiting for available socket
... subdomain called sounds.yoursite.com and load all your MP3s from there... etc..
Nginx has great options for directly serving static files and managing the static files caching.
share
|
improve th...
What's wrong with using == to compare floats in Java?
...t there is no exact way to represent most decimal numbers like .1, .2, .3, etc. All you can do is approximate in binary. The system does a little fudge-rounding when the numbers print so that it displays .1 instead of .10000000000001 or .999999999999 (which are probably just as close to the stored...
JavaScript for detecting browser language preference [duplicate]
...ll other browser.
Some language code: 'it' = italy, 'en-US' = english US, etc.
As pointed out by rcoup and The WebMacheter in comments below, this workaround won't let you discriminate among English dialects when users are viewing website in browsers other than IE.
window.navigator.language (Ch...
What is Mocking?
...ing 1000 real objects, like a MacBook pro, Google Nexus, a banana, an iPad etc in front of it and test and see if it all works.
But you can also use mocked objects, like an identical looking MacBook pro (with no real internal parts) or a plastic banana in front of it. You can save yourself from inve...
Algorithm to calculate the number of divisors of a given number
...of the divisors is:
(x + 1) * (y + 1) * (z + 1).
Edit: BTW, to find a,b,c,etc you'll want to do what amounts to a greedy algo if I'm understanding this correctly. Start with your largest prime divisor and multiply it by itself until a further multiplication would exceed the number n. Then move to t...
What should every programmer know about security? [closed]
...mputers in general (programming, algorithms, computer architecture, maths, etc).
17 Answers
...