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Better techniques for trimming leading zeros in SQL Server?
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SUBSTRING(str_col, PATINDEX('%[^0]%', str_col+'.'), LEN(str_col))
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Simple way to create matrix of random numbers
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Take a look at numpy.random.rand:
Docstring: rand(d0, d1, ..., dn)
Random values in a given shape.
Create an array of the given shape and propagate it with random
samples from a uniform distribution over [0, 1).
>>> import numpy as np
>>> np....
Angularjs if-then-else construction in expression
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Rafael Almeida
8,10666 gold badges3939 silver badges5757 bronze badges
answered May 16 '13 at 11:16
Andre GoncalvesAndr...
What's wrong with using == to compare floats in Java?
...urrentSectionID) < epsilon)
where epsilon is a very small number like 0.00000001, depending on the desired precision.
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Replace all elements of Python NumPy Array that are greater than some value
...o replace all values in it greater than or equal to a threshold T with 255.0. To my knowledge, the most fundamental way would be:
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Scala: what is the best way to append an element to an Array?
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206
You can use :+ to append element to array and +: to prepend it:
0 +: array :+ 4
should produ...
In Scala, what exactly does 'val a: A = _' (underscore) mean?
...he variable to a default value. From the Scala Language Specification:
0 if T is Int or one of its subrange types,
0L if T is Long,
0.0f if T is Float,
0.0d if T is Double,
false if T is Boolean,
() if T is Unit,
null for all other types T.
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Question mark and colon in JavaScript
...f the ? as "then" and : as "else".
Your code is equivalent to
if (max != 0)
hsb.s = 255 * delta / max;
else
hsb.s = 0;
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C# Regex for Guid
... you say.
resultString = Regex.Replace(subjectString,
@"(?im)^[{(]?[0-9A-F]{8}[-]?(?:[0-9A-F]{4}[-]?){3}[0-9A-F]{12}[)}]?$",
"'$0'");
This matches the following styles, which are all equivalent and acceptable formats for a GUID.
ca761232ed4211cebacd00aa0057b223
CA761232-ED42-11CE-BAC...
Transitions on the CSS display property
...rder: 1px solid #eee;
}
div > ul {
visibility: hidden;
opacity: 0;
transition: visibility 0s, opacity 0.5s linear;
}
div:hover > ul {
visibility: visible;
opacity: 1;
}
<div>
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li&...