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Is there any way to git checkout previous branch?
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1282
From the release notes for 1.6.2
@{-1} is a way to refer to the last branch you were on. ...
Case preserving substitute in Vim
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121
Use abolish.vim:
:%S/badjob/goodjob/g
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Why does Java switch on contiguous ints appear to run faster with added cases?
...ogram logic. Part of this code involves multiplying double variables by 10 raised to arbitrary non-negative int exponent s. One fast way (edit: but not the fastest possible, see Update 2 below) to get the multiplied value is to switch on the exponent :
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How to disable Crashlytics during development
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172
Marc from Crashlytics here. Here's a couple of ways to disable Crashlytics while you are doing...
HTTP error 403 in Python 3 Web Scraping
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213
This is probably because of mod_security or some similar server security feature which blocks k...
How to get a random value from dictionary in python
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14 Answers
14
Active
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How do you test to see if a double is equal to NaN?
... static Double.isNaN(double) method, or your Double's .isNaN() method.
// 1. static method
if (Double.isNaN(doubleValue)) {
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}
// 2. object's method
if (doubleObject.isNaN()) {
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}
Simply doing:
if (var == Double.NaN) {
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}
is not sufficient due to how the IEEE standard for ...
How to create a cron job using Bash automatically without the interactive editor?
...ontab
crontab -l > mycron
#echo new cron into cron file
echo "00 09 * * 1-5 echo hello" >> mycron
#install new cron file
crontab mycron
rm mycron
Cron line explaination
* * * * * "command to be executed"
- - - - -
| | | | |
| | | | ----- Day of week (0 - 7) (Sunday=0 or 7)
| | | ------...
Can git operate in “silent mode”?
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cat $stderr >&2
rm -f $stdout $stderr
exit 1
fi
rm -f $stdout $stderr
}
This will suppress stdout and stderr, unless the git command fails. It's not pretty; in fact the stdout file is ignored and it should just redirect that to /dev/null. Works, though. And...
How do I get the current absolute URL in Ruby on Rails?
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