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How to debug Ruby scripts [closed]
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I also recommend using Pry (definitely a life changer!).. Once installed and required in your program, setting a breakpoint is as easy as writing binding.pry. It also comes with colour completion, documentation lookup, and possibility to dynamically edit and reload a...
Git Push Error: insufficient permission for adding an object to repository database
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Repair Permissions
After you have identified and fixed the underlying cause (see below), you'll want to repair the permissions:
cd /path/to/repo.git
sudo chgrp -R groupname .
sudo chmod -R g+rwX .
find . -type d -exec chmod g+s '{}' +
Note if you want everyone ...
I want my android application to be only run in portrait mode?
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In the manifest, set this for all your activities:
<activity android:name=".YourActivity"
android:configChanges="orientation"
android:screenOrientation="portrait"/>
Let me explain:
With android:configChanges="orienta...
What is the syntax rule for having trailing commas in tuple definitions?
...lly when you have a long initialisation that is split over multiple lines. If you always include a trailing comma then you won't add another line to the end expecting to add another element and instead just creating a valid expression:
a = [
"a",
"b"
"c"
]
Assuming that started as a 2 el...
Why we should not use protected static in java
...ty close.
The only case I can see where you might use the two together is if you had an abstract class that was designed to be extended and the extending class could then modify the behavior using constants defined in the original. That sort of arrangement would most likely end up very messy though...
App Inventor 2 JDY-34双模蓝牙模块配置与通信教程 · App Inventor 2 中文网
...1.Text, "\n")
BluetoothClient1.SendText(data)
}
when Clock1.Timer() {
if BluetoothClient1.BytesAvailableToReceive() > 0 {
var newData = BluetoothClient1.ReceiveText(BluetoothClient1.BytesAvailableToReceive())
global_receiveBuffer = join(global_receiveBuffer, newData)
if containsText...
Regular expression to match a line that doesn't contain a word
...rep -v ). However, is it possible to match lines that do not contain a specific word, e.g. hede , using a regular expression?
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Should developers have administrator permissions on their PC
...l need to frig with system configurations to test items, install software (if nothing else, to test the installation process of whatever they happen to be developing), poke about the registry and run software that will not work properly without admin privileges (just to list a few items). There are...
Bash: Syntax error: redirection unexpected
...s hash bang line? The default system shell in Ubuntu is dash, not bash, so if you have #!/bin/sh then your script will be using a different shell than you expect. Dash does not have the <<< redirection operator.
sha...
What characters do I need to escape in XML documents?
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If you use an appropriate class or library, they will do the escaping for you. Many XML issues are caused by string concatenation.
XML escape characters
There are only five:
" &quot;
' &apos;
< &lt;
&g...