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When should I use Memcache instead of Memcached?
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Wilt
29.8k1010 gold badges113113 silver badges161161 bronze badges
answered Sep 18 '09 at 5:35
Miha HribarMiha Hribar
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Replace a value in a data frame based on a conditional (`if`) statement
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diliopdiliop
8,41344 gold badges2525 silver badges2222 bronze badges
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Auto increment in phpmyadmin
...s to enable auto increment for a column. I guess the phpMyAdmin version is 3.5.5 but not sure.
Click on Table > Structure tab > Under Action
Click Primary (set as primary),
click on Change on the pop-up window, scroll left and check A_I. Also make sure you have selected None for Default
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In SQL, what's the difference between count(column) and count(*)?
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236
count(*) counts NULLs and count(column) does not
[edit] added this code so that people can run...
Can I have multiple primary keys in a single table?
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edited Dec 12 '16 at 8:33
Sarfaraaz
47455 silver badges1616 bronze badges
answered Oct 20 '08 at 10:0...
Is it possible to Pivot data using LINQ?
...).Sum(c => c.Qty),
March = g.Where(c => c.OrderDate.Month == 3).Sum(c => c.Qty)
});
GroupBy in Linq does not work the same as SQL. In SQL, you get the key and aggregates (row/column shape). In Linq, you get the key and any elements as children of the key (hierarchical shape)...
ASP.NET MVC Conditional validation
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There's a much better way to add conditional validation rules in MVC3; have your model inherit IValidatableObject and implement the Validate method:
public class Person : IValidatableObject
{
public string Name { get; set; }
public bool IsSenior { get; set; }
public Senior Senior...
find: missing argument to -exec
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344
A -exec command must be terminated with a ; (so you usually need to type \; or ';' to avoid in...
What's the most efficient test of whether a PHP string ends with another string?
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13 Answers
13
Active
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How to play a notification sound on websites?
...rl);
audio.play();
}
<button onclick="playSound('https://your-file.mp3');">Play</button>
Browser support
Edge 12+, Firefox 20+, Internet Explorer 9+, Opera 15+, Safari 4+, Chrome
Codecs Support
Just use MP3
Old solution
(for legacy browsers)
function playSound(filename){
var mp3...