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Type safety: Unchecked cast
...g it to HashMap directly would not cause the problem with the second case (and perhaps there would not be a warning in the first case, I'm not sure how pedantic the Java compiler is with warnings for Java 5). However, you are converting it to a HashMap<String, String>.
HashMaps are really map...
Download data url file
...ess from a browser. They can just drag their zip directly into the browser and it'll let them download all the files within. They can also create new zip files by dragging individual files in.
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AngularJS UI Router - change url without reloading state
Currently our project is using default $routeProvider , and I am using this "hack", to change url without reloading page:
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Get image data url in JavaScript?
... the same domain as the page, or has the crossOrigin="anonymous" attribute and the server supports CORS. It's also not going to give you the original file, but a re-encoded version. If you need the result to be identical to the original, see Kaiido's answer.
You will need to create a canvas eleme...
What happens to a detached thread when main() exits?
Assume I'm starting a std::thread and then detach() it, so the thread continues executing even though the std::thread that once represented it, goes out of scope.
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How can I make my custom objects Parcelable?
I'm trying to make my objects Parcelable. However, I have custom objects and those objects have ArrayList attributes of other custom objects I have made.
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'innerText' works in IE, but not in Firefox
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Firefox uses the W3C-compliant textContent property.
I'd guess Safari and Opera also support this property.
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SQL Data Reader - handling Null column values
...der.GetString(indexFirstName);
}
That's your only reliable way to detect and handle this situation.
I wrapped those things into extension methods and tend to return a default value if the column is indeed null:
public static string SafeGetString(this SqlDataReader reader, int colIndex)
{
if(!...
Execution of Python code with -m option or not
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When you use the -m command-line flag, Python will import a module or package for you, then run it as a script. When you don't use the -m flag, the file you named is run as just a script.
The distinction is important when you try to run a package. T...
WCF vs ASP.NET Web API [closed]
I've spent a few months trying to grasp the concepts behind WCF and recently I've developed my first WCF service application.
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