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Generate a random alphanumeric string in Cocoa
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Here's a quick and dirty implementation. Hasn't been tested.
NSString *letters = @"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
-(NSString *) randomStringWithLength: (int) len {
NSMutableString *randomString = [NSMutableString stringWithCapacity: len];
for (int i=0...
Python: how to print range a-z?
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Get a list with the desired values
small_letters = map(chr, range(ord('a'), ord('z')+1))
big_letters = map(chr, range(ord('A'), ord('Z')+1))
digits = map(chr, range(ord('0'), ord('9')+1))
or
import string
string.letters
string.uppercase
string.digits
This solut...
How do you make lettered lists using markdown?
...ordered lists using numbers. How can I instead get an ordered list using letters ? i.e.
5 Answers
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How to capitalize the first letter of word in a string using Java?
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If you only want to capitalize the first letter of a string named input and leave the rest alone:
String output = input.substring(0, 1).toUpperCase() + input.substring(1);
Now output will have what you want. Check that your input is at least one character long be...
What does enumerate() mean?
...nowing the index of the current item easier (and more readable).
list_of_letters = ['a', 'b', 'c']
for i in range(len(list_of_letters)):
letter = list_of_letters[i]
print (i, letter)
The output is:
0 a
1 b
2 c
I also used to do something, even sillier before I read about the enumerate...
How Can I Set the Default Value of a Timestamp Column to the Current Timestamp with Laravel Migratio
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Given it's a raw expression, you should use DB::raw() to set CURRENT_TIMESTAMP as a default value for a column:
$table->timestamp('created_at')->default(DB::raw('CURRENT_TIMESTAMP'));
This works flawlessly on every database drive...
Generate array of all letters and digits
Using ruby, is it possible to make an array of each letter in the alphabet and 0-9 easily?
7 Answers
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Simplest two-way encryption using PHP
...g $message - plaintext message
* @param string $key - encryption key (raw binary expected)
* @param boolean $encode - set to TRUE to return a base64-encoded
* @return string (raw binary)
*/
public static function encrypt($message, $key, $encode = false)
{
$nonceS...
Regular Expression for alphanumeric and underscores
...gular expression that checks if a string contains only upper and lowercase letters, numbers, and underscores.
19 Answers
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First letter capitalization for EditText
...ications, the default seems to be that the shift key is held for the first letter... although it does not do this for my view. There has to be a simple way to fix, but I've searched the reference repeatedly and cannot find it. I'm thinking there has to be an xml attribute for the reference loaded by...