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How should I ethically approach user password storage for later plaintext retrieval?
...e (either to email a forgotten password link, walk them through over the phone, etc.) When I can I fight bitterly against this practice and I do a lot of ‘extra’ programming to make password resets and administrative assistance possible without storing their actual password.
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What's the purpose of using braces (i.e. {}) for a single-line if or loop?
...f (i % 2 == 0)
j++;
i++;
Of course, this is a silly mistake, but one that even an experienced programmer could make.
Another very good reason is pointed out in ta.speot.is's answer.
A third one I can think of is nested if's:
if (cond1)
if (cond2)
doSomething();
Now, assume y...
How do I trim whitespace from a string?
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Just one space, or all consecutive spaces? If the second, then strings already have a .strip() method:
>>> ' Hello '.strip()
'Hello'
>>> ' Hello'.strip()
'Hello'
>>> 'Bob has a cat'.strip()
'Bob has a ...
How to change an application icon programmatically in Android?
...de. It has a button increment. When pressed, the shortcut is replaced with one that has a new counting number.
First you need these two permissions in your manifest:
<uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
<uses-permission android:name="com.andr...
CRON job to run on the last day of the month
... jobs.
If you still really want to run it on the last day of the month, one option is to simply detect if tomorrow is the first (either as part of your script, or in the crontab itself).
So, something like:
55 23 28-31 * * [[ "$(date --date=tomorrow +\%d)" == "01" ]] && myjob.sh
shoul...
How do I insert a linebreak where the cursor is without entering into insert mode in Vim?
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'W' moves one character too far, it moves to the next character after the next whitespace.
– Greg Hewgill
Sep 23 '09 at 22:22
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How do I put two increment statements in a C++ 'for' loop?
...would like to increment two variables in a for -loop condition instead of one.
8 Answers
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Step-by-step debugging with IPython
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(Update on May 28, 2016) Using RealGUD in Emacs
For anyone in Emacs, this thread shows how to accomplish everything described in the OP (and more) using
a new important debugger in Emacs called RealGUD which can operate with any debugger (including ipdb).
The Emacs package isend...
Set environment variables on Mac OS X Lion
When someone says "edit your .plist file" or "your .profile" or ".bash_profile" etc, this just confuses me. I have no idea where these files are, how to create them if I have to do that, etc, and also why there seem to be so many different ones (why? Do they do different things?)
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android start activity from service
..., but not working on xiaomi redmi note 7, can you help my why it's working one device and one is not?
– Amjad Omari
Mar 27 at 17:54
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