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How to use SCNetworkReachability in Swift
... code snippet to Swift. I'm struggling on getting off the ground due to some difficulties.
7 Answers
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Formatting a number with leading zeros in PHP [duplicate]
...are not positive numbers. i.e. 08 would be written as such as a date, or something which expects a positive double digit number (Bank Account sort code etc). Please correct me if I'm wrong, but as far as I know, there is no real life instance of requiring a leading zero on a negative value?
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sqlite3-ruby install error on Ubuntu
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You need the SQLite3 development headers for the gem’s native extension to compile against. You can install them by running (possibly with sudo):
apt-get install libsqlite3-dev
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What is the equivalent of bigint in C#?
...But the Int64 will definitely hold it.
And the error you get if you use something smaller and the full size is needed? A stack overflow! Yay!
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src/lxml/etree_defs.h:9:31: fatal error: libxml/xmlversion.h: No such file or directory
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WPF Textblock, linebreak in Text attribute
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I know this is ressurecting an old question, but I had the same problem. The solution for me was to use HTML encoded line feeds (
).
Line1
Line2
Looks like
Line1
Line2
For more of the HTML encoded characters check out w3schools
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What is the difference between float and double?
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Huge difference.
As the name implies, a double has 2x the precision of float[1]. In general a double has 15 decimal digits of precision, while float has 7.
Here's how the number of digits are calculated:
double has 52 mantissa bits + 1 hidden bit: lo...
CodeIgniter activerecord, retrieve last insert id?
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Shame on me...
I looked at the user guide and the first function is $this->db->insert_id();
This also works with activerecord inserts...
EDIT: I updated the link
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What does $$ (dollar dollar or double dollar) mean in PHP?
...ample, if you consider this portion of code :
$real_variable = 'test';
$name = 'real_variable';
echo $$name;
You will get the following output :
test
Here :
$real_variable contains test
$name contains the name of your variable : 'real_variable'
$$name mean "the variable thas has its name co...
What is token-based authentication?
I want to understand what token-based authentication means. I searched the internet but couldn't find anything understandable.
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