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How to find what code is run by a button or element in Chrome using Developer Tools
I'm using Chrome and my own website.
5 Answers
5
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Downcasting in Java
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Downcasting is allowed when there is a possibility that it succeeds at run time:
Object o = getSomeObject(),
String s = (String) o; // this is allowed because o could reference a String
In some cases this will not succeed:
Object o = new Object();
String s = (String) ...
Detect if Android device has Internet connection
...o network available!");
}
return false;
}
Of course you can substitute the http://www.google.com URL for any other server you want to connect to, or a server you know has a good uptime.
As Tony Cho also pointed out in this comment below, make sure you don't run this code on the main threa...
Is it possible to search for a particular filename on GitHub?
I know that the GitHub web interface lets you search all repositories for files with a particular pathname (e.g. searching for path:/app/models/user.rb yields >109k results), but is there a way to search all repositories for filenames independent of their subdirectory location? I tried using as...
preferredStatusBarStyle isn't called
I followed this thread to override -preferredStatusBarStyle , but it isn't called.
Are there any options that I can change to enable it? (I'm using XIBs in my project.)
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Bogus foreign key constraint fail
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Two possibilities:
There is a table within another schema ("database" in mysql terminology) which has a FK reference
The innodb internal data dictionary is out of sync with the mysql one.
You can see which table it was (one of them, ...
List comprehension vs. lambda + filter
...d myself having a basic filtering need: I have a list and I have to filter it by an attribute of the items.
14 Answers
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When do I need to use Begin / End Blocks and the Go keyword in SQL Server?
...cript.
You could have multiple CREATE TABLE statements, separated by GO. It's a way of isolating one part of the script from another, but submitting it all in one block.
BEGIN and END are just like { and } in C/++/#, Java, etc.
They bound a logical block of code. I tend to use BEGIN and END a...
Why does Lua have no “continue” statement?
I have been dealing a lot with Lua in the past few months, and I really like most of the features but I'm still missing something among those:
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Message Queue vs. Web Services? [closed]
Under what conditions would one favor apps talking via a message queue instead of via web services (I just mean XML or JSON or YAML or whatever over HTTP here, not any particular type)?
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