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How do you create a daemon in Python?
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@JeffBauer: Sander's code is still better than http://pypi.python.org/pypi/python-daemon. More reliable. Just one example : try to start two times the same daemon with python-daemon : big ugly error. With Sander's code : a nice notice "Daemon already running."
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How to get an absolute file path in Python
...hon3.4')
>>> str(p)
'/opt/python3/bin/python3.4'
Docs are here: https://docs.python.org/3/library/pathlib.html
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Primary key or Unique index?
...utes that are guaranteed to be unique at the time the record is inserted.
http://database-programmer.blogspot.com has some great articles on this particular subject.
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C++ equivalent of java's instanceof
...{
return dynamic_cast<const Base*>(ptr) != nullptr;
}
Example: http://cpp.sh/6qir
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possible EventEmitter memory leak detected
... offline. Here is the archived version: web.archive.org/web/20180315203155/http://www.jongleberry.com/…
– Jeff Ward
Jul 3 '19 at 19:29
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Create a temporary table in a SELECT statement without a separate CREATE TABLE
... IF NOT EXISTS table2 AS (SELECT * FROM table1)
From the manual found at http://dev.mysql.com/doc/refman/5.7/en/create-table.html
You can use the TEMPORARY keyword when creating a table. A TEMPORARY table is visible only to the current session, and is dropped automatically when the session is ...
Facebook Open Graph not clearing cache
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Go to http://developers.facebook.com/tools/debug
Enter the URL following by fbrefresh=CAN_BE_ANYTHING
Examples:
http://www.example.com?fbrefresh=CAN_BE_ANYTHING
http://www.example.com?postid=1234&fbrefresh=CAN_BE_ANYTHING
O...
Get name of current class?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do you dynamically add elements to a ListView on Android?
...ml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button
android:id="@+id/addBtn"
androi...
Executing elements inserted with .innerHTML
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@phidah... Here is a very interesting solution to your problem:
http://24ways.org/2005/have-your-dom-and-script-it-too
So it would look like this instead:
<img src="empty.gif" onload="alert('test');this.parentNode.removeChild(this);" />
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