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Use “ENTER” key on softkeyboard instead of clicking button
... public boolean onKey(View v, int keyCode, KeyEvent event)
{
if (event.getAction() == KeyEvent.ACTION_DOWN)
{
switch (keyCode)
{
case KeyEvent.KEYCODE_DPAD_CENTER:
case KeyEvent.KEYCODE_ENTER:
addCourse...
Sequelize.js delete query?
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How do you handle if the id is an invalid id?
– Rod
Aug 25 '18 at 18:24
add a comment
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How do I get the last inserted ID of a MySQL table in PHP?
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If you're using PDO, use PDO::lastInsertId.
If you're using Mysqli, use mysqli::$insert_id.
If you're still using Mysql:
Please, don't use mysql_* functions in new code. They are no longer maintained and are officially ...
What are the most-used vim commands/keypresses?
... I've never seen this before, very cool reference for after you know what the commands do.
– amccormack
Mar 23 '11 at 4:27
3
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Check if a variable is a string in JavaScript
...// displays "object"
Example from this webpage. (Example was slightly modified though).
This won't work as expected in the case of strings created with new String(), but this is seldom used and recommended against[1][2]. See the other answers for how to handle these, if you so desire.
The Goo...
nonlocal keyword in Python 2.x
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why is it possible to modify the value from dictionary?
– coelhudo
Apr 13 '12 at 2:29
9
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How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...# modifies z with y's keys and values & returns None
return z
and now:
z = merge_two_dicts(x, y)
In Python 3.9.0a4 or greater (final release date approx October 2020): PEP-584, discussed here, was implemented to further simplify this:
z = x | y # NOTE: 3.9+ ONLY
Explanation
Sa...
记录一些Mac OS X技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.dynamic_pager.plist
禁用以后，磁盘上还保留着这些交换文件，它们已经没用了，也可以删掉：
sudo rm /private/var/vm/swapfile*
如果要重新启用虚拟内存的话，可以执行这条命令：
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How do I remove all specific characters at the end of a string in PHP?
How do I remove the last character only if it's a period?
9 Answers
9
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How do I set the figure title and axes labels font size in Matplotlib?
...ptitle, xlabel, ylabel)? I am making a lot of charts and just want to specify it once...
– vasek1
Sep 16 '12 at 6:12
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