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Line continuation for list comprehensions or generator expressions in python
...t appears at the end of a line, where it either doesn't stand out or needs extra padding, which has to be fixed when line lengths change:
x = very_long_term \
+ even_longer_term_than_the_previous \
+ a_third_term
In such cases, use parens:
x = (very_long_term
+ even_...
Can code that is valid in both C and C++ produce different behavior when compiled in each language?
...in different values in i in C and C++:
int i = sizeof('a');
See Size of character ('a') in C/C++ for an explanation of the difference.
Another one from this article:
#include <stdio.h>
int sz = 80;
int main(void)
{
struct sz { char c; };
int val = sizeof(sz); // sizeof(in...
How can I change my default database in SQL Server without using MS SQL Server Management Studio?
...names are provided without quotes. Brackets are needed if name had special chars (most common example will be domain user which is domain\username and won't work without brackets).
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How to recursively find and list the latest modified files in a directory with subdirectories and ti
...ew install coreutils and use gstat instead of stat
– CharlesB
Mar 28 '13 at 10:56
37
You don't ne...
What is DOCTYPE?
...
In HTML (including XHTML) as used on web pages, DOCTYPE is a string that triggers one of a few browser modes (quirks mode, standards mode, almost standards mode), depending on the exact spelling of the DOCTYPE. You want to use it to select a browser mode that best suits your page.
For...
Differences between INDEX, PRIMARY, UNIQUE, FULLTEXT in MySQL?
...b (In MySQL 5.6.4 and up) and Myisam Engines
You can only use FULLTEXT on CHAR, VARCHAR and TEXT column types
FULLTEXT index involves a LOT more than just creating an index. There's a bunch of system tables created, a completely separate caching system and some specific rules and optimizations app...
What is the best practice for dealing with passwords in git repositories?
...ld have.
Often config values can be non obvious, like database connection strings and similar things.
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When should I use a trailing slash in my URL?
...ile) when a directory is accessed, so /foo/ is /foo/index.html without the extra mess. Also, in the past, browsers would append / to the domain name, but they (Firefox, Chrome, Opera) have since changed to omit the / when accessing the homepage.
– 0b10011
Mar 7...
Why are Docker container images so large?
...in the Dockerfile writes a new layer in the image and every layer requires extra space on disk. In order to keep the number layers to a minimum, any file manipulation like install, moving, extracting, removing, etc, should ideally be made under a single RUN instruction
FROM fedora:latest
RUN yum -y...
Using tags in the with other HTML
... newspaper, etc. All of them do this.
If there's a good reason to put an extra <style> section somewhere in the body -- for instance if you're include()ing diverse and independent page elements in real time and each has an embedded <style> of its own, and the organization will be clean...