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Unpacking, extended unpacking and nested extended unpacking
...ns doesn't mean you should. You could write code like map(map, iterable_of_transformations, map(map, iterable_of_transformations, iterable_of_iterables_of_iterables)) but you don't.
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Set HTML5 doctype with XSLT
...gt;
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="html" encoding="utf-8" indent="yes" />
<xsl:template match="/">
<xsl:text disable-output-escaping='yes'>&lt;!DOCTYPE html&gt;</xsl:text>
<html...
PostgreSQL - max number of parameters in “IN” clause?
... planner more scope for
* optimization on such clauses.
*
* First step: transform all the inputs, and detect whether any are
* RowExprs or contain Vars.
*/
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How to get the index of an item in a list in a single step?
...
Use the overload of Select which takes an index in the predicate, so you transform your list into an (index, value) pair:
var pair = myList.Select((Value, Index) => new { Value, Index })
.Single(p => p.Value.Prop == oProp);
Then:
Console.WriteLine("Index:{0}; Value: {1}"...
List comprehension in Ruby
...comprehension is. Every single response assumes some preexisting array to transform. But list comprehension's power lies in an array created on the fly with the following syntax:
squares = [x**2 for x in range(10)]
The following would be an analog in Ruby (the only adequate answer in this threa...
Please explain some of Paul Graham's points on Lisp
...nctions which manipulate Lisp data representing Lisp programmes and output transformed data representing transformed programmes, to be used in place of the originals? In other words -- why not allow Lisp programmers to register their functions as compiler plugins of sorts, called macros in Lisp? And...
CSS strikethrough different color from text?
... empty :after element and decorated one border on it. You can even use CSS transforms to rotate it for a slanted line. Result: pure CSS, no extra HTML elements! Downside: doesn't wrap across multiple lines, although IMO you shouldn't use strikethrough on large blocks of text anyway.
s,
strike ...
How can I convert an image into a Base64 string?
What is the code to transform an image (maximum of 200 KB) into a Base64 String?
14 Answers
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Is there YAML syntax for sharing part of a list or map?
...With no pure-YAML way to do this, I'm going to implement this as a "syntax transformation" sitting between the YAML parser and the code that actually uses the configuration file. So my core application doesn't have to worry at all about any human-friendly redundancy-avoidance measures, and can just ...
Most efficient way to reverse a numpy array
... np.fliplr(). Here is some code that demonstrates constructing a 1d array, transforming it into a 2d array, flipping it, then converting back into a 1d array. time.clock() will be used to keep time, which is presented in terms of seconds.
import time
import numpy as np
start = time.clock()
x = np....