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Preferred Java way to ping an HTTP URL for availability
...e request method. However, you need to take into account that some poor webapps or homegrown servers may return HTTP 405 error for a HEAD (i.e. not available, not implemented, not allowed) while a GET works perfectly fine. Using GET is more reliable in case you intend to verify links/resources not d...
Sometimes adding a WCF Service Reference generates an empty reference.cs
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When it happened to me I found that I also needed to change the Collection Type from ObjectModel.ObservableCollection to Generic.List
– Yossi Dahan
Dec 8 '10 at 15:41
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How to split a long regular expression into multiple lines in JavaScript?
... //any unencapsulated string of the following
\b[A-Za-z$_][\w$]*\b
|
//a quoted string
//this is #5!
("|')(?:
//that contains any non-escape, non-quote character
(?!\5|\\).
...
Disable Browser Link - which toolbar
...ble visual studios browser link. I found this question:
How can I disable __vwd/js/artery in VS.NET 2013?
and many other resources saying I should untick "Enable Browser Link" in the toolbar, but that toolbar doesn't show up in my visual studio. I've enabled all the debug toolbars but still no br...
How can I make a horizontal ListView in Android? [duplicate]
...
Two reasons I don't go with this approach: (1) It doesn't extend AdapterView, so I can't use it interchangeably with my ListView and ListAdapter code, and (2) There is no recycling of views. Maybe it would be possible to tack this functionality onto the sc...
How do I write a bash script to restart a process if it dies?
...agine someone starting a process with a number somewhere as argument that happens to be the same as the PID you stared your daemon with! Imagine two people starting an X session and you grepping for X to kill yours. It's just all kinds of bad.
If you don't want to manage the process yourself; th...
Why use a READ UNCOMMITTED isolation level?
... know it, probably decades before Sql Server introduced it. I was quite disappointed when starting with SQL Server and I found out that all concurrency problems were solved using "primitive" locking mechanisms. Never saw "Read uncommitted" in Oracle. And the practitioner are as happy as the astronau...
What is the maximum possible length of a .NET string?
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Applying a binary search here would probably help you find this answer a lot quicker...
– Mario
Jul 12 '10 at 21:08
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Find the index of a dict within a list, by matching the dict's value
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tom_index = next((index for (index, d) in enumerate(lst) if d["name"] == "Tom"), None)
# 1
If you need to fetch repeatedly from name, you should index them by name (using a dictionary), this way get operations would be O(1) ti...
schema builder laravel migrations unique on two columns
...nique key across multiple columns.
$table->unique(array('mytext', 'user_id'));
or (a little neater)
$table->unique(['mytext', 'user_id']);
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