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How can I add numbers in a Bash script?
...(num1 + num2))
num=$(($num1 + $num2)) # Also works
num=$((num1 + 2 + 3)) # ...
num=$[num1+num2] # Old, deprecated arithmetic expression syntax
Using the external expr utility. Note that this is only needed for really old systems.
num=`expr $num1 + $num2` # Whitespace f...
Getting the client's timezone offset in JavaScript
...imezones are offset by whole hours: for example, Newfoundland is UTC minus 3h 30m (leaving Daylight Saving Time out of the equation).
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Unable to evaluate expression because the code is optimized or a native frame is on top of the call
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edited Jul 31 '13 at 14:21
Chuck Norris
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jQuery/Javascript function to clear all the fields of a form [duplicate]
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377
Note: this answer is relevant to resetting form fields, not clearing fields - see update.
You...
Mongoose — Force collection name
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gandreadis
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answered Sep 23 '11 at 10:19
Thomas BlobaumThom...
Generate JSON string from NSDictionary in iOS
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237
Here are categories for NSArray and NSDictionary to make this super-easy. I've added an option ...
How can I autoplay a video using the new embed code style for Youtube?
...le, but it didn't work. For example, http://www.youtube.com/embed/JW5meKfy3fY is the embed link, but http://www.youtube.com/embed/JW5meKfy3fY&autoplay=1 doesn't work. Can anyone tell me how to do it? Thanks
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How to get the name of the current method from code [duplicate]
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377
using System.Diagnostics;
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var st = new StackTrace();
var sf = st.GetFrame(0);
var curren...
How do I find out my MySQL URL, host, port and username?
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answered Nov 4 '10 at 3:24
AsaphAsaph
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Can I bind an array to an IN() condition?
...ou'll have to construct the query-string.
<?php
$ids = array(1, 2, 3, 7, 8, 9);
$inQuery = implode(',', array_fill(0, count($ids), '?'));
$db = new PDO(...);
$stmt = $db->prepare(
'SELECT *
FROM table
WHERE id IN(' . $inQuery . ')'
);
// bindvalue is 1-indexed, so $k+1
for...