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How can we match a^n b^n with Java regex?
...-referencing group is to make the self-reference matching optional.
Step 4½: Understanding what went wrong
The problem is that since we made the self-reference matching optional, the "counter" can "reset" back to 0 when there aren't enough b's. Let's closely examine what happens at every iteration...
How to save an activity state using save instance state?
...ctivity and not null when it's restoring.
– Gabriel Câmara
Jan 15 '14 at 13:21
7
... which raise...
Is there a way to detect if a browser window is not currently active?
... it? Here's a fiddle - jsfiddle.net/8a9N6/17
– Tony Lâmpada
Sep 16 '13 at 21:25
2
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How do I decode a string with escaped unicode?
I'm not sure what this is called so I'm having trouble searching for it. How can I decode a string with unicode from http\u00253A\u00252F\u00252Fexample.com to http://example.com with JavaScript? I tried unescape , decodeURI , and decodeURIComponent so I guess the only thing left is string r...
how to draw smooth curve through N points using javascript HTML5 canvas?
For a drawing application, I'm saving the mouse movement coordinates to an array then drawing them with lineTo. The resulting line is not smooth. How can I produce a single curve between all the gathered points?
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