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What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
...tion. I also added an answer, this one focussing on what I suppose are the roots of the syntax & differences between function statement vs function expression & what I think is "just a convention" vs "the only way to achieve this result".
– Adrien Be
No...
Understanding checked vs unchecked exceptions in Java
... inside it. But, and a big one - Never ever obscure in underlying original root cause. For ex, Don't ever do following -
try {
attemptLogin(userCredentials);
} catch (SQLException sqle) {
throw new LoginFailureException("Cannot login!!"); //<-- Eat away original root cause, thus obscu...
How can I exclude directories from grep -R?
...r current directory. So use pattern --exclude-dir=dir, not --exclude-dir="/root/dir/*".
– tanius
Feb 8 '14 at 17:39
...
How to make rounded percentages add up to 100%
...ore important than an error at 99%. In the code below I've used the square root.
The complete algorithm is as follows:
Sum the percentages after rounding them all down, and subtract from 100. This tells you how many of those percentages must be rounded up instead.
Generate two error scores for ea...
Spring Boot not serving static content
...TA-INF/resources/,
* /resources/, /static/, /public/] plus context:/ (the root of the servlet context).
*/
private String[] staticLocations = RESOURCE_LOCATIONS;
As mentioned before, the request URL will be resolved relative to these locations. Thus src/main/resources/static/index.html will be se...
PostgreSQL error 'Could not connect to server: No such file or directory'
...
This worked for me, but note that you must be root or use sudo to execute #2 - 4. Also, please clarify step #5 - you only need to restart postgres, not the computer.
– mpelzsherman
Jan 6 '14 at 16:24
...
Rake just one migration
...
you might have to require "#{Rails.root}/db/migrate/your_migrations.rb"
– s2t2
Jun 11 '15 at 19:03
add a comment
| ...
Java regex email
...mple.com
_somename@example.com
matteo(this is a comment).corti@example.com
root@[127.0.0.1]
Just to mention a few problems:
you don't consider the many forms of specifying a host (e.g, by the IP address)
you miss valid characters
you miss non ASCII domain names
Before even beginning check the ...
What is an 'endpoint' in Flask?
...
Hows about url_for for root? I catched error Could not build url for endpoint ''
– TomSawyer
Sep 19 '17 at 8:28
...
Why do I need Transaction in Hibernate for read-only operations?
...nsactions can be optimized by DBs, but this of course is DB specific. E.g. MySQL added support for this only in InnoDB starting from 5.6.4 version.
If you're not using JDBC directly, but rather an ORM, that might be problematic. For instance Hibernate community says that working outside of transacti...