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How can I implode an array while skipping empty array items?
Perl's join() ignores (skips) empty array values; PHP's implode() does not appear to.
9 Answers
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What text editor is available in Heroku bash shell? [closed]
...ate heroku-vim so you'll need to do it yourself. In my example I'm running php:
~ $ cat Procfile
web: vendor/bin/heroku-php-apache2
You can start this command yourself!
~ $ vendor/bin/heroku-php-apache2 2>/dev/null &
[2] 845
It's now running in the background!
curl your website
Dynos ...
HTML character decoding in Objective-C / Cocoa Touch
...};
NSAttributedString *decodedString;
decodedString = [[NSAttributedString alloc] initWithData:stringData
options:options
documentAttributes:NULL
error:NULL];
T...
Remove last character from C++ string
...ed. I think you're thinking of reserve, which at least might reduce memory allocated if asked to - see resize here and reserve here.
– Steve314
Mar 5 '14 at 6:53
3
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How to get rid of `deprecated conversion from string constant to ‘char*’` warnings in GCC?
...so you have to copy your const char* strings char by char into dynamically allocated char* strings in order to modify them.
Example:
#include <iostream>
void print(char* ch);
void print(const char* ch) {
std::cout<<ch;
}
int main() {
print("Hello");
return 0;
}
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How does akka compare to Erlang? [closed]
... @ErikAllik He meant 1000 "reductions". Think of a reduction as a token to execute a bit of code (it's not, but it does the job for explaining...). After 1000 reductions, the scheduler switches to a different process. More infos at erlang.org/pipermail/erlang-questions/2001-April/003132.htm...
Get child node index
...es). Array.prototype.indexOf accesses that implementation directly without allocating an anonymous instance. The difference is going to be negligible in almost all circumstances, so frankly it may not be worth caring about.
– Scott Miles
Jun 24 '15 at 17:03
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How do I get a substring of a string in Python?
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Substr() normally (i.e. PHP and Perl) works this way:
s = Substr(s, beginning, LENGTH)
So the parameters are beginning and LENGTH.
But Python's behaviour is different; it expects beginning and one after END (!). This is difficult to spot by beg...
Is it better to return null or empty collection?
...t;() instead of a new Foo[0]. It is more explicit and saves you one memory allocation (at least, in my installed .NET implementation).
– Trillian
Dec 28 '09 at 20:47
4
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Inserting multiple rows in mysql
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Here is a PHP solution ready for use with a n:m (many-to-many relationship) table :
// get data
$table_1 = get_table_1_rows();
$table_2_fk_id = 123;
// prepare first part of the query (before values)
$query = "INSERT INTO `table` (
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