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ssh: connect to host github.com port 22: Connection timed out
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edited Jan 20 '14 at 0:12
lantrix
35755 silver badges1616 bronze badges
answered Mar 23 '1...
Why does ConcurrentHashMap prevent null keys and values?
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BrunoBruno
107k2323 gold badges249249 silver badges346346 bronze badges
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Remove sensitive files and their commits from Git history
...>..HEAD
git push --force --verbose --dry-run
git push --force
Update 2019:
This is the current code from the FAQ:
git filter-branch --force --index-filter \
"git rm --cached --ignore-unmatch PATH-TO-YOUR-FILE-WITH-SENSITIVE-DATA" \
--prune-empty --tag-name-filter cat -- --all
git push...
Why do people still use primitive types in Java?
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400
In Joshua Bloch's Effective Java, Item 5: "Avoid creating unnecessary objects", he posts the fo...
Evaluate expression given as a string
...o change the string into an expression:
> eval(parse(text="5+5"))
[1] 10
> class("5+5")
[1] "character"
> class(parse(text="5+5"))
[1] "expression"
Calling eval() invokes many behaviours, some are not immediately obvious:
> class(eval(parse(text="5+5")))
[1] "numeric"
> class(eval...
Prevent nginx 504 Gateway timeout using PHP set_time_limit()
I am getting 504 timeouts message from nginx when my PHP script is running longer than usual. set_time_limit(0) does not seem to prevent that! Does it not work when running php5-fpm on nginx? If so, whats the proper way of setting the time limit?
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When to use DataContract and DataMember attributes?
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Ross Presser
4,93011 gold badge2121 silver badges5353 bronze badges
answered Jan 29 '11 at 12:18
marc_smarc_s
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无社交不商业，Uber将边缘化BAT - 资讯 - 清泛网 - 专注C/C++及内核技术
...出租车停在公司，现在的专车（私车）数量是出租车的10倍！
一个APP击溃了全国的出租车行业。
透过这个现象，我们看到一个奇怪的事儿，一家不拥有出租车，不拥有一个司机的互联网公司，居然打败了如此强大的出租车公...
Select all elements with “data-” attribute without using jQuery
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440
You can use querySelectorAll:
document.querySelectorAll('[data-foo]');
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