大约有 15,600 项符合查询结果（耗时：0.0616秒） [XML]
Rails.env vs RAILS_ENV
... get the current logger or RAILS_ROOT to get the path to the root folder.
Starting from Rails 2.x, Rails introduced the Rails module with some special methods:
Rails.root
Rails.env
Rails.logger
This isn't just a cosmetic change. The Rails module offers capabilities not available using the stand...
Solr vs. ElasticSearch [closed]
...with the recently introduced Amazon CloudSearch (see the introductory post Start Searching in One Hour for Less Than $100 / Month), because both claim to cover the same use cases in principle.
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Best practices for overriding isEqual: and hash
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Start with
NSUInteger prime = 31;
NSUInteger result = 1;
Then for every primitive you do
result = prime * result + var
For objects you use 0 for nil and otherwise their hashcode.
result = prime * result + [var hash...
Easy way to pull latest of all git submodules
...it after first pull that had submodules included, so that everything would start working properly.
– Ben Usman
May 12 '16 at 21:25
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Android - Writing a custom (compound) component
...;com.example.views.MyView /> and your setData and onFinishInflate calls start throwing NPEs, and you have no idea why.
– Christopher Perry
Mar 9 '13 at 1:37
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What should every JavaScript programmer know? [closed]
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..that javascript is not java :)
Many, many people starting with website development have told me javascript is just simple java!
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answered Apr 13...
Which C++ idioms are deprecated in C++11?
...eric code the use of 0 or NULL is not such a big deal. But as soon as you start passing around null pointer constants in generic code the situation quickly changes. When you pass 0 to a template<class T> func(T) T gets deduced as an int and not as a null pointer constant. And it can not be ...
Print commit message of a given commit in git
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I started to use
git show-branch --no-name <hash>
It seems to be faster than
git show -s --format=%s <hash>
Both give the same result
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Send message to specific client with socket.io and node.js
...module.js:310:12) at Function.Module.runMain (module.js:501:10) at startup (node.js:129:16) at node.js:814:3
– Lucas Bertollo
Nov 28 '15 at 13:56
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Cross compile Go on OSX?
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everything started by trying to do: $ GOARCH=386 GOOS=linux go build app.go and getting error # runtime /usr/local/go/src/pkg/runtime/extern.go:137: undefined: theGoos /usr/local/go/src/pkg/runtime/extern.go:137: cannot use theGoos as ...