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What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
In the following method definitions, what does the * and ** do for param2 ?
22 Answers
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CORS - What is the motivation behind introducing preflight requests?
Cross-origin resource sharing is a mechanism that allows a web page to make XMLHttpRequests to another domain (from wikipedia ).
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getApplication() vs. getApplicationContext()
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Very interesting question. I think it's mainly a semantic meaning, and may also be due to historical reasons.
Although in current Android Activity and Service implementations, getApplication() and getApplicationContext() return the same object, there is no guarantee that this will ...
Grouping functions (tapply, by, aggregate) and the *apply family
Whenever I want to do something "map"py in R, I usually try to use a function in the apply family.
10 Answers
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Differences between hard real-time, soft real-time, and firm real-time?
I have read the definitions for the different notions of real-time , and the examples provided for hard and soft real-time systems make sense to me. But, there is no real explanation or example of a firm real-time system. According to the link above:
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javax.faces.application.ViewExpiredException: View could not be restored
...problem is when I log in and open another page on which I logout, then I come back to first page and I click on any link etc or refresh page I get this exception. I guess it's normal (or maybe not:)) because I logged out and session is destroyed. What should I do to redirect user to for example inde...
What is the best alternative IDE to Visual Studio [closed]
As I've only ever used Visual Studio for .NET development, I would like to expand my horizons and see what else there is on offer as an alternative to it. So what in your opinion is the best alternative to Visual Studio? Is there a viable alternative?
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What is the purpose of backbone.js?
I tried to understand the utility of backbone.js from its site http://documentcloud.github.com/backbone , but I still couldn't figure out much.
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Join/Where with LINQ and Lambda
...ot errors:
var id = 1;
var query =
from post in database.Posts
join meta in database.Post_Metas on post.ID equals meta.Post_ID
where post.ID == id
select new { Post = post, Meta = meta };
If you're really stuck on using lambdas though, your syntax is quite a bit off. Here's the same q...
Should CSS always preceed Javascript?
In countless places online I have seen the recommendation to include CSS prior to JavaScript. The reasoning is generally, of this form :
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