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`require': no such file to load — mkmf (LoadError)
I was trying to install rails on Ubuntu Natty Narwhal 11.04, using ruby1.9.1.
10 Answers
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Facebook Open Graph not clearing cache
...fresh even if you delete the thumnail/image from your server. But Facebook allows you to refresh by using fbrefresh
I hope this helps.
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Groovy / grails how to determine a data type?
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To determine the class of an object simply call:
someObject.getClass()
You can abbreviate this to someObject.class in most cases. However, if you use this on a Map it will try to retrieve the value with key 'class'. Because of this, I always use getClass() even thou...
Fit background image to div
...is the most appropriated one.
Source:
http://www.w3schools.com/cssref/css3_pr_background-size.asp
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Class constants in python
In python, I want a class to have some "constants" (practically, variables) which will be common in all subclasses. Is there a way to do it with friendly syntax?
Right now I use:
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How can I get “Copy to Output Directory” to work with Unit Tests?
... folder and then the tests are executed. The issue I'm having is that not all the files in the Debug/bin directory are copied to the TestResults project.
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Vim: What's the difference between let and set?
...iendly interface specialized for options
E.g.
:verbose set
to display all options in effect.
:set tw=40
Will work as a shorthand for set textwidth=40
:set wrap&
Will set the default value for option wrap
:set nowrap
Will unset the option
:set wrap!
Will toggle the option
Most i...
Replace all whitespace characters
I want to replace all occurrences of white space characters (space, tab, newline) in JavaScript.
How to do so?
9 Answer...
How to get the difference between two arrays in JavaScript?
... The fastest way is the most obviously naive solution. I tested all of the proposed solutions for symmetric diff in this thread, and the winner is: function diff2(a, b) { var i, la = a.length, lb = b.length, res = []; if (!la) return b; else if (!lb) r...
How to print the values of slices
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¯\_(ツ)_/¯ If you find short solution please add it as an answer to this question. I’m betting that is what most people are looking for.
– Pylinux
Dec 7 '19 at 14:03
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