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How can I find out if I have Xcode commandline tools installed?
...oper/CommandLineTools
And to be sure then enter $ gcc --version
You can read more about the process here: Xcode command line tools for Mavericks
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How to replace all occurrences of a string?
...roof, of course, but it should be enough to get you started. I'd recommend reading some more on these pages. This'll prove useful in perfecting this expression to meet your specific needs.
http://www.javascriptkit.com/jsref/regexp.shtml
http://www.regular-expressions.info
Final addition:
Given...
Load HTML file into WebView
...origin. If null, it's about:blank.
data: String containing your hmtl file, read with BufferedReader for example
More info: WebView.loadDataWithBaseURL(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String)
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Is there a reason for C#'s reuse of the variable in a foreach?
...3 and C# 4. When we designed C# 3 we did realize that the problem (which already existed in C# 2) was going to get worse because there would be so many lambdas (and query comprehensions, which are lambdas in disguise) in foreach loops thanks to LINQ. I regret that we waited for the problem to get su...
Role/Purpose of ContextLoaderListener in Spring?
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@sourcedelica I have one doubt after reading this I have checked my applications web.xml. In my xml file there are two listeners ContextLoaderListener and DispatcherServlet. So I guess there is no need of both, is it safe to remove ContextLoaderListener why I am...
What is the reason not to use select *?
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In your first section, point #5 should read "select * gives you all columns from all tables in the join". In your second section, points #2 and #5 are not necessarily true, and should not be listed as reasons to not use "select *".
– jimmyor...
javascript node.js next()
...ations that require serial execution of actions, e.g. scan directory -> read file data -> do something with data. This is in preference to deeply nesting the callbacks. The first three sections of the following article on Tim Caswell's HowToNode blog give a good overview of this:
http://howto...
How can I use goto in Javascript?
...rt:
console.log("Hello, world!");
i++;
if(i < 538) goto start;
You can read more about how goto is implemented, but basically, it does some JavaScript preprocessing that takes advantage of the fact that you can simulate a goto with a labelled while loop. So, when you write the "Hello, world!" pr...
@Transactional(propagation=Propagation.REQUIRED)
...ction on the database before executing. If the caller of this method has already started a Transaction then this method will use that same physical Transaction on the current database connection.
This @Transactional annotation provides a means of telling your code when it executes that it must have...
How to tell if rails is in production?
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I found it much easier to just restart the rails server and read the second line on the command line:
Running rails s -e production outputs:
=> Booting Puma
=> Rails 4.2.4 application starting in `production` on http://localhost:3000
Had Webrick in the example but some peopl...