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How do I check for null values in JavaScript?
.... I'm not guessing at anything, I was just being polite. You're bothered by the fact that I answered what they needed and not what they asked, which is absurd. This is SO, most of the time people don't know what they should be asking for. In the context of the original question this answer is co...
How to tell whether a point is to the right or left side of a line
... where M(X,Y) is the query point:
position = sign((Bx - Ax) * (Y - Ay) - (By - Ay) * (X - Ax))
It is 0 on the line, and +1 on one side, -1 on the other side.
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How to turn on line numbers in IDLE?
...
As it was mentioned by Davos you can use the IDLEX
It happens that I'm using Linux version and from all extensions I needed only LineNumbers. So I've downloaded IDLEX archive, took LineNumbers.py from it, copied it to Python's lib folder ( in m...
Django: Display Choice Value
...n scenario)? Ideally without the overhead of instantiating the Models one by one and calling get_field_display().
– DylanYoung
Mar 23 '17 at 17:34
7
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Why does LayoutInflater ignore the layout_width and layout_height layout parameters I've specified?
...etContentView(R.layout.main);
ViewGroup parent = (ViewGroup) findViewById(R.id.container);
// result: layout_height=wrap_content layout_width=match_parent
view = LayoutInflater.from(this).inflate(R.layout.red, null);
parent.addView(view);
// result: layout_height=100 ...
Display open transactions in MySQL
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By using this query you can see all open transactions.
List All:
SHOW FULL PROCESSLIST
if you want to kill a hang transaction copy transaction id and kill transaction by using this command:
KILL <id> // e.g KILL 1...
NodeJS: Saving a base64-encoded image to disk
...e64') will convert the input string to a Buffer, which is just an array of bytes, by interpreting the input as a base64 encoded string. Then you can just write that byte array to the file.
Update
As mentioned in the comments, req.rawBody is no longer a thing. If you are using express/connect then ...
`levels
...ent to
x <- `levels<-`(x, y)
The trick is, this rewriting is done by <-; it is not done by levels<-. levels<- is just a regular function that takes an input and gives an output; it does not mutate anything.
One consequence of that is that, according to the above rule, <- must b...
AddBusinessDays and GetBusinessDays
.../param>
/// <returns>A <see cref="DateTime"/> increased by a given number of business days.</returns>
public static DateTime AddBusinessDays(this DateTime current, int days)
{
var sign = Math.Sign(days);
var unsignedDays = Math.Abs(days);
for ...
Simplest way to do a fire and forget method in c# 4.0
... background - that's exactly what you wanted, so we disable warning 4014.
By default, Tasks attempt to "Marshal back onto the original Thread," which means that this Task will run in the background, then attempt to return to the Thread that started it. Often fire and forget Tasks finish after the o...