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How to show soft-keyboard when edittext is focused
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44 Answers
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Extracting specific columns from a data frame
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Given the furious rate of change in the tidyverse, I would caution against using this pattern. This is in addition to my strong preference a...
Heroku/devise - Missing host to link to! Please provide :host parameter or set default_url_options[:
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You need to add this to your environment.rb
config.action_mailer.default_url_options = { :ho...
Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
...checksum as your python script:
> echo -n mystringforhash | md5sum
86b6423cb6d211734fc7d81bbc5e11d3 -
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In git how is fetch different than pull and how is merge different than rebase?
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What does JVM flag CMSClassUnloadingEnabled actually do?
...nks to Sam Hasler). See this answer: https://stackoverflow.com/a/3720052/2541
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How to convert a string to lower case in Bash?
...IX
You may run into portability issues with the following examples:
Bash 4.0
$ echo "${a,,}"
hi all
sed
$ echo "$a" | sed -e 's/\(.*\)/\L\1/'
hi all
# this also works:
$ sed -e 's/\(.*\)/\L\1/' <<< "$a"
hi all
Perl
$ echo "$a" | perl -ne 'print lc'
hi all
Bash
lc(){
case "$1...
How do I limit the number of rows returned by an Oracle query after ordering?
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20 rows selected.
Get first N rows
SELECT val
FROM rownum_order_test
ORDER B...