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Sass and combined child selector
I've just discovered Sass, and I've been so excited about it.
2 Answers
2
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How do you get a query string on Flask?
...ry string itself. "Query string" means everything after the question mark and before the pound sign, if one is present.
– Lyndsy Simon
Aug 2 '12 at 16:32
46
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How to use shared memory with Linux in C
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There are two approaches: shmget and mmap. I'll talk about mmap, since it's more modern and flexible, but you can take a look at man shmget (or this tutorial) if you'd rather use the old-style tools.
The mmap() function can be used to allocate memory buffer...
Are PHP Variables passed by value or by reference?
...ave an argument to a function always passed by reference, prepend an ampersand (&) to the argument name in the function definition.
<?php
function add_some_extra(&$string)
{
$string .= 'and something extra.';
}
$str = 'This is a string, ';
add_some_extra($str);
echo $str; // out...
Remove all special characters except space from a string using JavaScript
...this str.replace(/[^a-zA-Z0-9 ]/g, ""); notice there's a space between 0-9 and ]
– Ammar Shah
Mar 7 '19 at 10:50
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Increase font size chrome console
...ou just need a quick, temporary size bump you can press Ctrl + / - to zoom and Ctrl 0 to reset.
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Passing variable number of arguments around
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To pass the ellipses on, you have to convert them to a va_list and use that va_list in your second function. Specifically;
void format_string(char *fmt,va_list argptr, char *formatted_string);
void debug_print(int dbg_lvl, char *fmt, ...)
{
char formatted_string[MAX_FMT_SIZE];
...
Alternate output format for psql
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I just needed to spend more time staring at the documentation. This command:
\x on
will do exactly what I wanted. Here is some sample output:
select * from dda where u_id=24 and dda_is_deleted='f';
-[ RECORD 1 ]------+--------------------------------------------------------------------------...
How to make a background 20% transparent on Android
...alpha channel. For example, for red use #CCFF0000:
<TextView
...
android:background="#CCFF0000" />
In the example, CC is the hexadecimal number for 255 * 0.8 = 204. Note that the first two hexadecimal digits are for the alpha channel. The format is #AARRGGBB, where AA is the alpha cha...
Convert a Map to a POJO
... looking at Jackson, but is seems I would have to convert the Map to JSON, and then the resulting JSON to the POJO.
8 Answ...