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Extract a regular expression match
...and function except that the object is a vector of strings (rather than an array) and the modifier is a regular expression (rather than a margin):
library(gsubfn)
x <- c("xy13", "ab 12 cd 34 xy")
strapply(x, "\\d+", as.numeric)
# list(13, c(12, 34))
This says to match one or more digits (\d+) ...
How to get WordPress post featured image URL
...
If you want JUST the source, and not an array with other information:
<?php $url = wp_get_attachment_url( get_post_thumbnail_id($post->ID), 'thumbnail' ); ?>
<img src="<?php echo $url ?>" />
...
How to turn on (literally) ALL of GCC's warnings?
...n -Waggressive-loop-optimizations -Waliasing -Walign-commons -Wampersand -Warray-bounds -Warray-temporaries -Wassign-intercept -Wattributes -Wbad-function-cast -Wbool-compare -Wbuiltin-macro-redefined -Wc++-compat -Wc++0x-compat -Wc++14-compat -Wc-binding-type -Wc90-c99-compat -Wc99-c11-compat -Wcas...
How to Debug Variables in Smarty like in PHP var_dump()
...hould work:
{$var|@print_r}
or
{$var|@var_dump}
The @ is needed for arrays to make smarty run the modifier against the whole thing, otherwise it does it for each element.
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How to programmatically set maxLength in Android TextView?
...xt :
TextView tv = new TextView(this);
int maxLength = 10;
InputFilter[] fArray = new InputFilter[1];
fArray[0] = new InputFilter.LengthFilter(maxLength);
tv.setFilters(fArray);
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Why use prefixes on member variables in C++ classes
...tory, C++ strings are by common convention pointers to nul-terminated char arrays, and it's not really all that difficult to know that "customerName" is a string!
However, I do use prefixes to specify the usage of a variable (essentially "Apps Hungarian", although I prefer to avoid the term Hungari...
Parameterize an SQL IN clause
...ing[] paramNames = tags.Select(
(s, i) => "@tag" + i.ToString()
).ToArray();
string inClause = string.Join(", ", paramNames);
using (SqlCommand cmd = new SqlCommand(string.Format(cmdText, inClause))) {
for(int i = 0; i < paramNames.Length; i++) {
cmd.Parameters.AddWithValue(par...
How to write a scalable Tcp/Ip based server
...eceives data from the client. For BeginReceive, you need to give it a byte array, which is where it will copy the data when the client sends data. The ReceiveCallback method will get called, which is how we handle receiving data.
private void ReceiveCallback(IAsyncResult result)
{
//get our conne...
How to replace innerHTML of a div using jQuery?
.... In the second example it can be of type htmlString or Element or Text or Array or jQuery as per api.jquery.com/append
– Cine
Aug 29 '17 at 3:17
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Memcache Vs. Memcached [duplicate]
...her key was found.
Because of this limitation I switched to storing empty arrays instead of FALSE in cache. I am still using Memcache, but I just wanted to put this info out there for people who are deciding.
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