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typeof !== “undefined” vs. != null
...o distinguish between the two. In many cases, == can be better, because it tests for both null and undefined.
– seanmonstar
Jun 19 '12 at 16:58
10
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What is the best open XML parser for C++? [duplicate]
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@Kissaki I have tested a few XML parsers including a few commercial ones before using [pugixml] (pugixml.org) in a commercial product.
– sg7
Jun 8 '16 at 18:51
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Compare double to zero using epsilon
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The test certainly is not the same as someValue == 0. The whole idea of floating-point numbers is that they store an exponent and a significand. They therefore represent a value with a certain number of binary significant figures...
Create code first, many to many, with additional fields in association table
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@Esteban, the code you provided is right, thanks, but incomplete, I've tested it. There are missing properties in "UserEmail" class:
public UserTest UserTest { get; set; }
public EmailTest EmailTest { get; set; }
I post the code I've tested if someone is interested.
Regards
using Sys...
Get difference between two lists
...is:
s = set(temp2)
temp3 = [x for x in temp1 if x not in s]
Performance test
import timeit
init = 'temp1 = list(range(100)); temp2 = [i * 2 for i in range(50)]'
print timeit.timeit('list(set(temp1) - set(temp2))', init, number = 100000)
print timeit.timeit('s = set(temp2);[x for x in temp1 if x ...
No connection could be made because the target machine actively refused it?
...e web service has started up more slowly than the client application while testing. Still adding retry logic is defintely the way to go.
– Martin Brown
Mar 8 '12 at 9:42
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What are the real-world strengths and weaknesses of the many frameworks based on backbone.js? [close
Hope that someone can share their experience with some of the latest emerging backbone.js variants out there.
I have some good experience with backbone/underscore/require in several projects and I will like to take the next step towards more advanced solutions for complex application structure.
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Detecting endianness programmatically in a C++ program
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I've tested this, and in both gcc 4.0.1 and gcc 4.4.1 the result of this function can be determined at compile time and treated as a constant. This means that the compiler will drop if branches that depend solely on the result of...
Get top 1 row of each group
I have a table which I want to get the latest entry for each group. Here's the table:
20 Answers
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How to read from a file or STDIN in Bash?
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Here is the simplest way:
#!/bin/sh
cat -
Usage:
$ echo test | sh my_script.sh
test
To assign stdin to the variable, you may use: STDIN=$(cat -) or just simply STDIN=$(cat) as operator is not necessary (as per @mklement0 comment).
To parse each line from the standard input, t...