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The 'json' native gem requires installed build tools
I have ruby 1.9.2p180 (2011-02-18) [i386-mingw32] installed on my windows 7 machine. Now I tried to install the JSON gem using the command, "gem install json" and got the following error.
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Check if character is number?
I need to check whether justPrices[i].substr(commapos+2,1) .
22 Answers
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How to set specific java version to Maven
On my machine I have two java versions installed: (1.6 and 1.7 installed manually by me). I need both of them for different projects. But for Maven I need 1.7, now my Maven uses 1,6 java version, how can I set Maven to use 1.7?
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scipy.misc module has no attribute imread?
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In Ruby, is there an Array method that combines 'select' and 'map'?
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How do I list all versions of a gem available at a remote site?
...em list rhc --remote --all
Which returns:
*** REMOTE GEMS ***
rhc (0.84.15, 0.84.13, 0.83.9, 0.82.18, 0.81.14, 0.80.5, 0.79.5, 0.77.8, 0.75.9, 0.74.6, 0.74.5, 0.73.14, 0.72.29, 0.71.2, 0.69.6, 0.69.3, 0.68.5)
rhcp (0.2.18, 0.2.17, 0.2.16, 0.2.15, 0.2.14, 0.1.9, 0.1.8, 0.1.7, 0.1.6, 0.1.5, 0.1.4, ...
What's the opposite of chr() in Ruby?
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Correct way of using JQuery-Mobile/Phonegap together?
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174
You can use deferred feature of JQuery.
var deviceReadyDeferred = $.Deferred();
var jqmReadyD...
SQL Server CTE and recursion example
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I haven't tested your code, just tried to help you understand how it operates in comment;
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How do you sort an array on multiple columns?
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