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The cast to value type 'Int32' failed because the materialized value is null
...ky abstraction" that yields unexpected behaviour.
One such case is null handling, where there can be unexpected nulls in different places. ...DefaultIfEmpty(0).Sum(0) can help in this (quite simple) case, where there might be no elements and sql's SUM returns null whereas c# expect 0.
A more gene...
Why is typeof null “object”?
I'm reading 'Professional Javascript for Web Developers' Chapter 4 and it tells me that the five types of primitives are: undefined, null, boolean, number and string.
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AngularJS performs an OPTIONS HTTP request for a cross-origin resource
...e the asset host which delivers my template files is on a different domain and therefore the XHR request that angular performs must be cross-domain. I've added the appropriate CORS header to my server for the HTTP request to make this work, but it doesn't seem to work. The problem is that when I ins...
How to understand Locality Sensitive Hashing?
...mmds/ch3a.pdf
Also I recommend the below slide:
http://www.cs.jhu.edu/%7Evandurme/papers/VanDurmeLallACL10-slides.pdf .
The example in the slide helps me a lot in understanding the hashing for cosine similarity.
I borrow two slides from Benjamin Van Durme & Ashwin Lall, ACL2010 and try to expl...
How to list all the files in a commit?
I am looking for a simple git command that provides a nicely formatted list of all files that were part of the commit given by a hash (SHA1), with no extraneous information.
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Error : The service is invalid
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Xcode and the GDB connection is quite temperamental. The device and your Mac can become unsynchronised with each other. My checklist for this sort of thing:
Restart Xcode.
Delete the .app from your iOS device, do a Clean then Reb...
How can I find my Apple Developer Team id and Team Agent Apple ID?
...g to transfer an app. I am having troubles finding my team agent apple id and my team id. I have found it before and I have searched for 30 min without any luck now that i need it.
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How to set Bullet colors in UL/LI html lists via CSS without using any images or span tags [duplicat
...et/leaverou/ytH5P/
Will work in all browsers, including IE from version 8 and up.
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Is it possible to style html5 audio tag?
...ur liking by not using the browser controls, but rolling your own controls and talking to the audio API via javascript.
Luckily, other people have already done this. My favorite player right now is jPlayer, it is very stylable and works great. Check it out.
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How to hash a password
... byte array you could use
var data = Encoding.ASCII.GetBytes(password);
and to get back string from md5data or sha1data
var hashedPassword = ASCIIEncoding.GetString(md5data);
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