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Python: Convert timedelta to int in a dataframe
...f days represented in td. Not required in this case but it's really useful if say you want to work out how many 15 minute intervals td represents
– David Waterworth
Jul 13 '19 at 5:29
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How to kill all processes matching a name?
...When -f is set, the full command line is used.
Which means, for example, if we see these lines in ps aux:
apache 24268 0.0 2.6 388152 27116 ? S Jun13 0:10 /usr/sbin/httpd
apache 24272 0.0 2.6 387944 27104 ? S Jun13 0:09 /usr/sbin/httpd
apache 24319 0.0 2.6 3878...
Math - mapping numbers
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If your number X falls between A and B, and you would like Y to fall between C and D, you can apply the following linear transform:
Y = (X-A)/(B-A) * (D-C) + C
That should give you what you want, although your question is ...
How to interpolate variables in strings in JavaScript, without concatenation?
...introduced in ES2015 (ES6).
Example
var a = 5;
var b = 10;
console.log(`Fifteen is ${a + b}.`);
// "Fifteen is 15.
How neat is that?
Bonus:
It also allows for multi-line strings in javascript without escaping, which is great for templates:
return `
<div class="${foo}">
...
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sql ORDER BY multiple values in specific order?
... all records with a certain value and return the row.
I would like to know if I can order by multiple values.
9 Answers
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how to return index of a sorted list? [duplicate]
...return a list with the index of the sorted items in the list. For example, if the list I want to sort is [2,3,1,4,5] , I need [2,0,1,3,4] to be returned.
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.NET Process.Start default directory?
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Can the WorkingDirectory be a relative path, and if so, what is it relative to, the current file or the directory of the current executable? I'm having trouble getting my program to find the executable I'm trying to start. I've set the working directory to the directory of ...
How to export plots from matplotlib with transparent background?
...displaying it using Matplotlib so as to save you graph as a png file.
And if you want to turn all white pixel transparent, there's this other question : Using PIL to make all white pixels transparent?
If you want to turn an entire area to transparent, then there's this question: And then use the P...
Logging request/response messages when using HttpClient
...teLine("Request:");
Console.WriteLine(request.ToString());
if (request.Content != null)
{
Console.WriteLine(await request.Content.ReadAsStringAsync());
}
Console.WriteLine();
HttpResponseMessage response = await base.SendAsync(request, can...
Is there any performance reason to declare method parameters final in Java?
...s, thus it cannot impact the runtime performance. It's only use is to clarify the coders intent that the variable not be changed (which many consider dubious reason for its usage), and dealing with anonymous inner classes.
There is a lot of argument over whether the final modifier on the method it...