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How to differ sessions in browser-tabs?
...f I store information in the user session, this information is shared from all the tabs from the same browser. How to differ sessions in the browser-tabs?
In this example:
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How to kill/stop a long SQL query immediately?
...e red cancel button, but it has not stopped for the past 10 minutes. It usually stops within 3 minutes.
11 Answers
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How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this docu
...ugging, as soon as you've arrived at a breakpoint or used Debug > Break All, use Debug > Windows > Modules. You'll see a list of all the assemblies that are loaded into the process. Locate the one you want to get debug info for. Right-click it and select Symbol Load Information. You'll ...
What do querySelectorAll and getElementsBy* methods return?
...Name (and similar functions like getElementsByTagName and querySelectorAll ) work the same as getElementById or do they return an array of elements?
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Removing viewcontrollers from navigation stack
...e this code and enjoy:
NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];
// [navigationArray removeAllObjects]; // This is just for remove all view controller from navigation stack.
[navigationArray removeObjectAtIndex: 2]; // ...
What is the difference between an interface and a class, and why I should use an interface when I ca
... Hey that looks like a very good ingredient for me to understand, I really appreciate it, thanks a lot :) :)
– Jasmine
Jun 6 '12 at 13:46
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Remove blank lines with grep
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Try the following:
grep -v -e '^$' foo.txt
The -e option allows regex patterns for matching.
The single quotes around ^$ makes it work for Cshell. Other shells will be happy with either single or double quotes.
UPDATE: This works for me for a file with blank lines or "all white ...
window.onload vs $(document).ready()
...e HTML document has been loaded, while the onload event occurs later, when all content (e.g. images) also has been loaded.
The onload event is a standard event in the DOM, while the ready event is specific to jQuery. The purpose of the ready event is that it should occur as early as possible after ...
How do you list the active minor modes in emacs?
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C-h m or M-x describe-mode shows all the active minor modes (and major mode) and a brief description of each.
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When should one use RxJava Observable and when simple Callback on Android?
...I decided to try out Square's Retrofit . I see that they support simple Callback
9 Answers
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