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When to use symbols instead of strings in Ruby?
...e, composed of characters, but immutable. A string, on the contrary, is an ordered container for characters, whose contents are allowed to change.
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Explain ExtJS 4 event handling
...gets event handling is realized by utilizing Ext.util.Observable mixin. In order to handle events properly your widget must containg Ext.util.Observable as a mixin. All built-in widgets (like Panel, Form, Tree, Grid, ...) has Ext.util.Observable as a mixin by default.
For widgets there are two ways...
What is a git topic branch?
...ed in your own repository. You periodically update this branch (using git fetch) to track what is happening elsewhere. When you are ready to catch up with everybody else's changes, you would use git pull to both fetch and merge.
I have also seen another kind of branch which is essentially a complet...
Outline effect to text
...t some parts of my text to make it more intuitive - like the names, links, etc. Changing the link colors etc. are common nowadays, so I want something new.
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What are the differences between a multidimensional array and an array of arrays in C#?
... @supercat: multi-dimensional arrays in C# are stored in row-major order, swapping the order of the subscripts would be slower since you would be accessing the memory non-consecutively. BTW the times reported are no longer accurate, I get almost twice as fast times for multi-dimensional arra...
What are Makefile.am and Makefile.in?
...out make and Makefile first, then learn about automake, autoconf, libtool, etc.
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How to change package name of an Android Application
...orts for you. You can even have it fix it for you in comments and strings, etc.
Lastly, change the package name accordingly in your AndroidManifest.xml towards the top. Otherwise you will get errors everywhere complaining about R.whatever.
Another very useful solution
First create a new package w...
Difference between class and type
...lass type covers our enums , our regular (non generic) classes like String etc and our generic classes too.
Similarly , I hope interface and array types is also clear. By array Type we mean like int[], String[] etc.
Let us come to the last part - Type variables. What are they ?
A type variabl...
Check if a string contains one of 10 characters
...C# and I want to check if a string contains one of ten characters, *, &, # etc etc.
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Specifying and saving a figure with exact size in pixels
...the same pixel dimensions as the im array.
Note: the OP specified no axes, etc. which is what this solution does exactly. If one wants to add axes, ticks, etc. my preferred approach is to do that on a separate plot, saving with transparent=True (PNG or PDF) then overlay the latter on the image. This...