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中文网（自研/维护）拓展 · App Inventor 2 中文网
...名称。
CallbackMessage(message,timestamp)
返回通知中输入的消息。
CallbackMusicPlayer(nameAction)
当点击媒体样式通知的任意按钮时，该块中返回Action的名称。
方法
ActionNotification(title,subtitle,bigText,bigPicture,largeIcon...
Extracting the last n characters from a string in R
... on Andrie's code)
substrRight <- function(x, n){
sapply(x, function(xx)
substr(xx, (nchar(xx)-n+1), nchar(xx))
)
}
> substrRight(c("12345","ABCDE"),2)
12345 ABCDE
"45" "DE"
Note that I have changed (nchar(x)-n) to (nchar(x)-n+1) to get n characters.
...
Understanding REST: Verbs, error codes, and authentication
...b page.
Point 3: How to return error messages and codes
Consider the 4xx or 5xx HTTP status codes as error categories. You can elaborate the error in the body.
Failed to Connect to Database: / Incorrect Database Login: In general you should use a 500 error for these types of errors. This is a ...
那些年 O2O创业我踩了十个坑 - 资讯 - 清泛网 - 专注C/C++及内核技术
...时我是一个非常开放的人，愿意将和投资人及外界的各种消息分享给我的核心团队，可经历几次发现，如果分享的是正面的消息，大家会比较兴奋，可如果分享的是负面消息，核心团队的士气会马上跟着下降，甚至有人遇到风险...
Increasing client_max_body_size in Nginx conf on AWS Elastic Beanstalk
...d at /var/log/cfn-init.log. In the logs you should see something like 2014-xx-xx xx:xx:xx,xxx [DEBUG] Writing content to /etc/nginx/conf.d/proxy.conf. I'm not sure, but it seemed like restarting the server might be necessary.
– h-kippo
Dec 11 '14 at 9:12
...
Post JSON using Python Requests
...ent': 'python-requests/2.4.3 CPython/3.4.0',
'X-Request-Id': 'xx-xx-xx'},
'json': {'key': 'value'},
'origin': 'x.x.x.x',
'url': 'http://httpbin.org/post'}
EDIT: This feature has been added to the official documentation. You can view it here: Requests documentation
...
IIS7 Overrides customErrors when setting Response.StatusCode?
...om Error Pages but you also want to deliver some RESTful content based on 4xx statuses then you have a problem. Setting web.config's httpErrors.existingResponse to "Auto" does not work, because .net seems to always deliver some page content to IIS, therefore using "Auto" causes all (or at least some...
MongoDB mongorestore failure: locale::facet::_S_create_c_locale name not valid
...en en_US en_US.UTF-8
sudo locale-gen it_IT it_IT.UTF-8
sudo locale-gen xx_xx xx_XX.UTF-8 ...
sudo dpkg-reconfigure locales
These commands will generate and configure the needed locales.
After those steps mongorestore got back working as usual.
...
Handle Guzzle exception and get HTTP body
I would like to handle errors from Guzzle when the server returns 4xx and 5xx status codes. I make a request like this:
5 A...
PHP: How to send HTTP response code?
...ponses with HTTP response codes (status-codes), like HTTP 200 OK, or some 4XX or 5XX code.
9 Answers
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