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Disable messages upon loading a package
...The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: x86_64-pc-linux-gnu (64-bit)
[...]
R> suppressMessages(library(ROCR))
R> # silently loaded
R> search()
[1] ".GlobalEnv" "package:ROCR" # it's really there...
How to send email via Django?
... I'm not in the business of managing email servers.
In settings.py:
EMAIL_USE_TLS = True
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_PORT = 587
EMAIL_HOST_USER = 'me@gmail.com'
EMAIL_HOST_PASSWORD = 'password'
NOTE: In 2016 Gmail is not allowing this anymore by default. You can either use an external se...
Accessing console and devtools of extension's background.js
...
additionally
if you want to see content_script js file ( when "background" property is not set ) in manifest.json
"content_scripts": [{
"matches": ["<all_urls>"],
"js": ["popup.js"],
}]
"browser_action": {
"default_icon": "icon_32.png",
"...
What is the Difference Between read() and recv() , and Between send() and write()?
... on a socket, and will produce an error if you try to use it on, say, STDIN_FILENO.
– Joey Adams
Jul 31 '11 at 5:29
78
...
Check if an image is loaded (no errors) with jQuery
...lop for, try developing for Internet Explorer 7 or less. Besides adding a $_GET parameter to the image load, will load a new image everytime, like Gromix suggested.
– SSH This
Jan 14 '13 at 23:51
...
Can table columns with a Foreign Key be NULL?
...NGINE=INNODB;
CREATE TABLE child (id INT NULL,
parent_id INT NULL,
FOREIGN KEY (parent_id) REFERENCES parent(id)
) ENGINE=INNODB;
INSERT INTO child (id, parent_id) VALUES (1, NULL);
-- Query OK, 1 row affected (0.01 sec)
INSERT INTO child (id, parent_id)...
Why does MYSQL higher LIMIT offset slow the query down?
...with SELECT, the slower the query becomes, when using ORDER BY *primary_key*
6 Answers
...
Combine multiple Collections into a single logical Collection?
...
@jn_ just wrap it in Iterables.unmodifiableIterable(iterable)
– Sean Patrick Floyd
Feb 4 '11 at 10:36
2
...
C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
...crosoft Windows, a process that accesses invalid memory receives the STATUS_ACCESS_VIOLATION exception.
另外，这里有个基本上对照的中文解释，来自http://www.linux999.org/html_sql/3/132559.htm
所谓的段错误 就是指访问的内存超出了系统所...
Android Studio: Plugin with id 'android-library' not found
... edited Jul 3 '15 at 10:00
AZ_
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answered Aug 9 '13 at 19:08
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