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How to count certain elements in array?
...the body of the loop anyway if you need to capture or clone your iteration index or value. For-loops are more efficient generally, but sometimes you need a closure.)
The most readable way:
[....].filter(x => x==2).length
(We could have written .filter(function(x){return x==2}).length instead)...
Ruby Hash to array of values
...azingly after I tried your code) I spent one day with no luck removing the index using many methods... All I can say thank you very much!!! :D
– Romans 8.38-39
Jan 8 '14 at 3:19
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Relational table naming convention [closed]
...nate Key (IDEF1X term)
Note that the table name is not required in the index name, because it always shows up as table_name.index_name.
So when Customer.UC_CustomerId or Product.U__AK appears in an error message, it tells you something meaningful. When you look at the indices on a table, you c...
is guava-libraries available in maven repo?
...
mvnrepository is your friend. It has an index of maven repository space with maven, ivy and other details about artifacts.
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When should null values of Boolean be used?
... @MichalB. Sybase (and SQL Server) bit type infocenter.sybase.com/help/index.jsp?topic=/…
– mmmmmm
Jun 25 '12 at 11:10
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Browserify - How to call function bundled in a file generated through browserify in browser
...xample where we use the --s option with an argument of module:
browserify index.js --s module > dist/module.js
This will expose our module as a global variable named module.
Source.
Update:
Thanks to @fotinakis. Make sure you're passing --standalone your-module-name. If you forget that --...
Number of lines in a file in Java
...getLineNumber() + 1; // +1 because line index starts at 0
}
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jQuery - Get Width of Element when Not Visible (Display: None)
... 'visibility': 'hidden',
'position': 'absolute',
'z-index': '-99999',
'left': '99999999px',
'top': '0px'
}).appendTo('body');
var width = $itemClone.width();
$itemClone.remove();
s...
Is Redis just a cache?
...s, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes with radius queries and streams. Redis has built-in replication, Lua scripting, LRU eviction, transactions and different levels of on-disk persistence, and provides high availability via Redis Sentinel and automatic p...
How to manage a redirect request after a jQuery Ajax call
...s issue by:
Adding a custom header to the response:
public ActionResult Index(){
if (!HttpContext.User.Identity.IsAuthenticated)
{
HttpContext.Response.AddHeader("REQUIRES_AUTH","1");
}
return View();
}
Binding a JavaScript function to the ajaxSuccess event and checking t...