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Best practices for Storyboard login screen, handling clearing of data upon logout
I'm building an iOS app using a Storyboard. The root view controller is a Tab Bar Controller. I'm creating the login/logout process, and it's mostly working fine, but I've got a few issues. I need to know the BEST way to set all this up.
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How to read a single character from the user?
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Tested on Win10 + Python 3.5： ERROR:root:'in <string>' requires string as left operand, not bytes Traceback (most recent call last): File "..\main.py", line 184, in wrapper result = func(*args, **kwargs) File "C:\GitHub\Python-Demo\demo\day_hello....
Changing the maximum length of a varchar column?
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Also it works for MySQL and this question is tagged [TSQL] so it's in the wrong place
– jean
Mar 28 '18 at 10:55
6
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docker error: /var/run/docker.sock: no such file or directory
... using boot2docker as every command passed into the boot2docker VM runs as root by default.
You're seeing the error when you're running as sudo because sudo doesn't have the DOCKER_HOST env set, only your user does.
You can confirm this by doing a:
$ env
Then a
$ sudo env
And looking for DOC...
How to tell if a file is git tracked (by shell exit code)?
...results(logs). Else it is empty.
For example if the file is git tracked,
root@user-ubuntu:~/project-repo-directory# git log src/../somefile.js
commit ad9180b772d5c64dcd79a6cbb9487bd2ef08cbfc
Author: User <someone@somedomain.com>
Date: Mon Feb 20 07:45:04 2017 -0600
fix eslint indentat...
Splitting string into multiple rows in Oracle
I know this has been answered to some degree with PHP and MYSQL, but I was wondering if someone could teach me the simplest approach to splitting a string (comma delimited) into multiple rows in Oracle 10g (preferably) and 11g.
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Can I try/catch a warning?
...t a lot of time debugging a problem in a system where someone had written @mysql_query( '...' ) and the problem was that mysql support was not loaded into PHP and it threw a silent fatal error. It will be safe for those things that are part of the PHP core but please use it with care.
bob@mypc:~$ p...
How can I create an error 404 in PHP?
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try putting
ErrorDocument 404 /(root directory)/(error file)
in .htaccess file.
Do this for any error but substitute 404 for your error.
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improv...
How to use count and group by at the same select statement
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needs alias otherwise wouldnt work in mysql. select count(*) from( ) agr
– amas
Jan 9 '14 at 6:54
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Insert a line at specific line number with sed or awk
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sed -e '8iProject_Name=sowstest' -i start using GNU sed
Sample run:
[root@node23 ~]# for ((i=1; i<=10; i++)); do echo "Line #$i"; done > a_file
[root@node23 ~]# cat a_file
Line #1
Line #2
Line #3
Line #4
Line #5
Line #6
Line #7
Line #8
Line #9
Line #10
[root@node23 ~]# sed -e '3ixxx inse...