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How to select where ID in Array Rails ActiveRecord without exception
...ns.
Comment.find_all_by_id([2, 3, 5])
will work even if some of the ids don't exist. This works in the
user.comments.find_all_by_id(potentially_nonexistent_ids)
case as well.
Update: Rails 4
Comment.where(id: [2, 3, 5])
...
encryption/decryption with multiple keys
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GnuPG does multi-key encryption in standard.
The following command will encrypt doc.txt using the public key for Alice and the public key for Bob. Alice can decrypt using her private key. Bob can also decrypt using his private key...
jQuery see if any or no checkboxes are selected
...ut the >0) would be sufficient because 0 is a falsey value, see james.padolsey.com/javascript/truthy-falsey
– Adrien Be
May 19 '14 at 12:32
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Where do you include the jQuery library from? Google JSAPI? CDN?
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Without a doubt I choose to have JQuery served by Google API servers. I didn't go with the jsapi method since I don't leverage any other Google API's, however if that ever changed then I would consider it...
First: The Google api ser...
How to sort an array in Bash
...
You don't really need all that much code:
IFS=$'\n' sorted=($(sort <<<"${array[*]}"))
unset IFS
Supports whitespace in elements (as long as it's not a newline), and works in Bash 3.x.
e.g.:
$ array=("a c" b f "3 5")...
Delete directories recursively in Java
... should check out Apache's commons-io. It has a FileUtils class that will do what you want.
FileUtils.deleteDirectory(new File("directory"));
share
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How to use JavaScript regex over multiple lines?
...d up, even though it spans over newline characters. I thought the 'm' flag does it. Does not.
6 Answers
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How to check if object property exists with a variable holding the property name?
...Obj){
alert("yes, i have that property");
}
Note that hasOwnProperty doesn't check for inherited properties, whereas in does. For example 'constructor' in myObj is true, but myObj.hasOwnProperty('constructor') is not.
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How to make a edittext box in a dialog
...make a edittext box in a dialog box for entering a password.
and when I am doing I am not able to do. I am a beginner in it.
Please help me in this.
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PHP json_encode encoding numbers as strings
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I've done a very quick test :
$a = array(
'id' => 152,
'another' => 'test',
'ananother' => 456,
);
$json = json_encode($a);
echo $json;
This seems to be like what you describe, if I'm not mistaken ?
And I'...