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Else clause on Python while statement
...as an if/else construct with respect to the condition:
if condition:
handle_true()
else:
handle_false()
is analogous to the looping construct:
while condition:
handle_true()
else:
# condition is false now, handle and go on with the rest of the program
handle_false()
An exam...
Remove or uninstall library previously added : cocoapods
...our podfile (delete the lines with the pods you don't want to use anymore) and run:
$ pod install
Done.
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Trying to embed newline in a variable in bash [duplicate]
...n the source code
p="${var1}
${var2}"
echo "${p}"
Using $'\n' (only bash and zsh)
p="${var1}"$'\n'"${var2}"
echo "${p}"
Details
1. Inserting \n
p="${var1}\n${var2}"
echo -e "${p}"
echo -e interprets the two characters "\n" as a new line.
var="a b c"
first_loop=true
for i in $var
do
p="...
UIActivityViewController crashing on iOS 8 iPads
... Xcode 6 (Beta 6). UIActivityViewController works fine with iPhone devices and simulators but crashes with iPad simulators and devices (iOS 8) with following logs
...
Which SQL query is faster? Filter on Join criteria or Where clause?
...
Performance-wise, they are the same (and produce the same plans)
Logically, you should make the operation that still has sense if you replace INNER JOIN with a LEFT JOIN.
In your very case this will look like this:
SELECT *
FROM TableA a
LEFT JOIN
...
List submodules in a Git repository
...lf, namely, look at .gitmodules. This files enumerates each submodule path and the URL it refers to.
For example, from root of repository, cat .gitmodules will print contents to the screen (assuming you have cat).
Because .gitmodule files have the Git configuration format, you can use git config t...
How can I use optional parameters in a T-SQL stored procedure?
...hich are optional. Is there a way to create a stored procedure that will handle this? Let's say I have a table with four fields: ID, FirstName, LastName and Title. I could do something like this:
...
Android - how do I investigate an ANR?
...Application Not Responding). I took a look at the traces.txt file in /data and I see a trace for my application. This is what I see in the trace.
...
How to find out which package version is loaded in R?
...cluster. It has 2 versions of R installed. System wide R 2.11 (Debian 6.0) and R 2.14.2 in non-standard location.
12 Answe...
How do I change the cursor between Normal and Insert modes in Vim?
...
A popular option to indicate switching to and from Insert mode is
toggling the cursorline option, which is responsible for whether
the current screen line is highlighted (see :help cursorline):
:autocmd InsertEnter,InsertLeave * set cul!
or, alternatively:
:autocmd ...