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_=> what does this underscore mean in Lambda expressions?

...follow | edited May 6 '10 at 4:11 answered May 6 '10 at 4:04 ...
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Mercurial — revert back to old version and continue from there

I'm using Mercurial locally for a project (it's the only repo there's no pushing/pulling to/from anywhere else). 7 Answers ...
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Parse a URI String into Name-Value Collection

... If you are looking for a way to achieve it without using an external library, the following code will help you. public static Map<String, String> splitQuery(URL url) throws UnsupportedEncodingException { Map<String, String> query_pairs = new LinkedH...
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What's the safest way to iterate through the keys of a Perl hash?

If I have a Perl hash with a bunch of (key, value) pairs, what is the preferred method of iterating through all the keys? I have heard that using each may in some way have unintended side effects. So, is that true, and is one of the two following methods best, or is there a better way? ...
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Get local IP address

....ToString(); } } throw new Exception("No network adapters with an IPv4 address in the system!"); } To check if you're connected or not: System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable(); ...
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Enter triggers button click

I have a page with two buttons. One is a <button> element and the other is a <input type="submit"> . The buttons appear on the page in that order. If I'm in a text field anywhere in the form and press <Enter> , the button element's click event is triggered. I assume that's be...
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How to implement “confirmation” dialog in Jquery UI dialog?

...eplace the ugly javascript:alert() box. In my scenario, I have a list of items, and next to each individual of them, I would have a "delete" button for each of them. the psuedo html setup will be something follows: ...
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Can anyone explain CreatedAtRoute() to me?

...you invoke a POST method to store some new object. So if you POST an order item for instance, you might return a route like 'api/order/11' (11 being the id of the order obviously). BTW I agree that the MSDN article is of no use in understanding this. The route you actually return will naturally dep...
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What reason is there to use null instead of undefined in JavaScript?

I've been writing JavaScript for quite a long time now, and I have never had a reason to use null . It seems that undefined is always preferable and serves the same purpose programmatically. What are some practical reasons to use null instead of undefined ? ...
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I can’t find the Android keytool

... keytool comes with the Java SDK. You should find it in the directory that contains javac, etc. share | improve this answer | ...