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Test if string is a number in Ruby on Rails
...t(string) rescue false
end
And then call it like this:
my_string = '12.34'
is_number?( my_string )
# => true
Extend String Class.
If you want to be able to call is_number? directly on the string instead of passing it as a param to your helper function, then you need to define is_number? as...
What's the purpose of the LEA instruction?
... is in EAX, and xcoord and ycoord are each 32 bits (so ycoord is at offset 4 bytes in the struct), this statement can be compiled to:
MOV EDX, [EBX + 8*EAX + 4] ; right side is "effective address"
which will land y in EDX. The scale factor of 8 is because each Point is 8 bytes in size. Now con...
How do you use bcrypt for hashing passwords in PHP?
...rasmuslerdorf', PASSWORD_BCRYPT, $options)."\n";
// $2y$11$6DP.V0nO7YI3iSki4qog6OQI5eiO6Jnjsqg7vdnb.JgGIsxniOn4C
To verify a user provided password against an existing hash, you may use the password_verify() as such:
<?php
// See the password_hash() example to see where this came from.
$hash =...
Python script to copy text to clipboard [duplicate]
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edited Oct 4 '18 at 17:15
vauhochzett
55544 silver badges2020 bronze badges
answered Jun ...
How to host a Node.Js application in shared hosting [closed]
...//Spawn node server in the background and return its pid
$pid = exec('PORT=49999 node/bin/node ' . $file . ' >/dev/null 2>&1 & echo $!');
//Wait for node to start up
usleep(500000);
//Connect to node server using cURL
$curl = curl_init('http://127.0.0.1:49999/');
curl_setopt($curl, CUR...
ImportError: No module named six
...
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edited Jan 5 '14 at 2:39
Uli Köhler
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Laravel 4: how to “order by” using Eloquent ORM [duplicate]
Simple question - how do I order by 'id' descending in Laravel 4.
3 Answers
3
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Determine which MySQL configuration file is being used
...ld.
Among all the other system calls, you will find something like:
stat64("/etc/my.cnf", 0xbfa3d7fc) = -1 ENOENT (No such file or directory)
stat64("/etc/mysql/my.cnf", {st_mode=S_IFREG|0644, st_size=4227, ...}) = 0
open("/etc/mysql/my.cnf", O_RDONLY|O_LARGEFILE) = 3
So, as you can see..i...
What's better at freeing memory with PHP: unset() or $var = null
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VonCVonC
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Difference between jQuery `click`, `bind`, `live`, `delegate`, `trigger` and `on` functions (with an
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answered Jun 2 '10 at 4:09
Nick Craver♦Nick Craver
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