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How can I convert a hex string to a byte array? [duplicate]
...g));
}
byte[] data = new byte[hexString.Length / 2];
for (int index = 0; index < data.Length; index++)
{
string byteValue = hexString.Substring(index * 2, 2);
data[index] = byte.Parse(byteValue, NumberStyles.HexNumber, CultureInfo.InvariantCulture);
}
ret...
how to get the one entry from hashmap without iterating
...no such thing as 'the first entry', and that's also why there is no get-by-index method on Map (or HashMap).
You could do this:
Map<String, String> map = ...; // wherever you get this from
// Get the first entry that the iterator returns
Map.Entry<String, String> entry = map.entrySet...
How big is too big for a PostgreSQL table?
...u are doing.
Depending on your data distribution you can use a mixture of indexes, filtered indexes, and table partitioning of some kind to speed thing up once you see what performance issues you may or may not have. Your problem will be the same on any other RDMS that I know of. If you only need ...
Passing data to a closure in Laravel 4
...om('info@website.com', 'Sender');
});
Note: The function being used is a PHP Closure (anonymous function) It is not exclusive to Laravel.
share
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foll...
pass post data with window.location.href
...
$("#btn_id").click(function(){
$.redirect(http://localhost/test/test1.php,
{
user_name: "khan",
city : "Meerut",
country : "country"
});
});
});
see https://github.com/mgalante/jquery.redirect
...
Generating all permutations of a given string
... {
res.add(s);
} else if (s.length() > 1) {
int lastIndex = s.length() - 1;
// Find out the last character
String last = s.substring(lastIndex);
// Rest of the string
String rest = s.substring(0, lastIndex);
// Perform permutation on the...
How do I toggle an element's class in pure JavaScript?
...Name){
return;
}
var classString = element.className, nameIndex = classString.indexOf(className);
if (nameIndex == -1) {
classString += ' ' + className;
}
else {
classString = classString.substr(0, nameIndex) + classString.substr(nameIndex+className.lengt...
How to Get True Size of MySQL Database?
... MySQL forum:
SELECT table_schema "database name",
sum( data_length + index_length ) / 1024 / 1024 "database size in MB",
sum( data_free )/ 1024 / 1024 "free space in MB"
FROM information_schema.TABLES
GROUP BY table_schema;
Or in a single line for easier copy-pasting:
SELECT table_sche...
Displaying build times in Visual Studio?
...tal time, and not that ClCompile took 22424ms in one of the projects. Ctrl+Q, build and run <Enter>, and change first "minimal" to "normal".
– Tomasz Gandor
May 11 '16 at 8:28
...
img tag displays wrong orientation
...
You can use the GD library in PHP.
– i-CONICA
Jul 10 '14 at 7:47
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