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http HEAD vs GET performance
...g for the same question that requester asked. I also found this at http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html:
The HEAD method is identical to GET except that the server MUST NOT return a message-body in the response. The metainformation contained in the HTTP headers in response to a...
Storing Data in MySQL as JSON
...s. See also Secondary Indexes and Virtual Generated Columns.
More info:
https://dev.mysql.com/doc/refman/5.7/en/json.html
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UITableView - change section header color
...tView.backgroundColor = [UIColor blackColor];
}
Taken from my post here:
https://happyteamlabs.com/blog/ios-how-to-customize-table-view-header-and-footer-colors/
Swift 3 / 4
func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int){
view.tintColor ...
python date of the previous month
...today.
when = datetime.datetime.today()
# Find previous month: https://stackoverflow.com/a/9725093/564514
# Find today.
first = datetime.date(day=1, month=when.month, year=when.year)
# Use that to find the first day of this month.
prev_month_end = first - datetime.timedel...
数据存储组件 · App Inventor 2 中文网
...网站上查看中文文档。2个网站体验差不多，网站如下：
https://tinywebdb.cn/ 经测试，单个键值的容量大小约为 64KB 字节，超过则会保存失败。
https://tinywebdb.appinventor.space/ 经测试，单个键值的容量大小约为 9000 字节（9KB），超...
How does one change the language of the command line interface of Git?
...sh and always available without installing additional language packs
(see https://askubuntu.com/a/142814/34298)
To change it for the whole current bash session just enter
LANG=C
To change it for example to german enter
LANG=de_DE.UTF-8
...
Difference between OData and REST web services
...th
OData, XOData is the best start for you.
for more details at http://www.odata.org/
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Floating point vs integer calculations on modern hardware
...e, lower is faster and preferable):
Update to accomodate @Peter Cordes
https://gist.github.com/Lewiscowles1986/90191c59c9aedf3d08bf0b129065cccc
i7 4700MQ Linux Ubuntu Xenial 64-bit (all patches to 2018-03-13 applied)
short add: 0.773049
short sub: 0.789793
short mul: 0.960152
s...
ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...rom user modifying sensitive data.
Here is extended explanation:
http://www.stevefenton.co.uk/Content/Blog/Date/201303/Blog/Why-You-Never-Expose-Your-Domain-Model-As-Your-MVC-Model/
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Performance of Java matrix math libraries? [closed]
...
Jeigen https://github.com/hughperkins/jeigen
wraps Eigen C++ library http://eigen.tuxfamily.org , which is one of the fastest free C++ libraries available
relatively terse syntax, eg 'mmul', 'sub'
handles both dense and sparse ma...