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Truncating floats in Python
...yond the desired number of characters. The latter step is easy; it can be done either with string manipulation
i, p, d = s.partition('.')
'.'.join([i, (d+'0'*n)[:n]])
or the decimal module
str(Decimal(s).quantize(Decimal((0, (1,), -n)), rounding=ROUND_DOWN))
The first step, converting to a str...
How To: Best way to draw table in console app (C#)
...g.Format("|{0,5}|{1,5}|{2,5}|{3,5}|", arg0, arg1, arg2, arg3);
To create one formatted row.
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Copy array items into another array
...JS engine of the browser or wherever you're using it in? It might be fixed one day. I would choose code maintainability over hacky speed optimizations. Hmm ....
– Bitterblue
Jun 10 '16 at 9:04
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quick random row selection in Postgres
...
This has an off by one error. It will never return the first row and will generate an error 1/COUNT(*) because it will try to return the row after the last row.
– Ian
Mar 21 '14 at 20:24
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Uncatchable ChuckNorrisException
...you can get this to work if you disable the byte code verifier! (-Xverify:none)
UPDATE 3:
For those following from home, here is the full script:
Create the following classes:
public class ChuckNorrisException
extends RuntimeException // <- Comment out this line on second compilation
{
...
Difference between map and collect in Ruby?
... [emphasis mine]. Common Lisp provides a family of map-like functions; the one corresponding to the behavior described here is called mapcar (-car indicating access using the CAR operation).
Ruby provides an alias for programmers from the Smalltalk world to feel more at home.
Why is there a di...
What is the proper way to format a multi-line dict in Python?
..., I want to write a multi-line dict in my code. There are a couple of ways one could format it. Here are a few that I could think of:
...
What is the proper way to check for null values?
...
What about
string y = (Session["key"] ?? "none").ToString();
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Recommended way of making React component/div draggable
I want to make a draggable (that is, repositionable by mouse) React component, which seems to necessarily involve global state and scattered event handlers. I can do it the dirty way, with a global variable in my JS file, and could probably even wrap it in a nice closure interface, but I want to kno...
Preloading images with jQuery
...;
});
}
// Usage:
preload([
'img/imageName.jpg',
'img/anotherOne.jpg',
'img/blahblahblah.jpg'
]);
Or, if you want a jQuery plugin:
$.fn.preload = function() {
this.each(function(){
$('<img/>')[0].src = this;
});
}
// Usage:
$(['img1.jpg','img2.jpg','img3....