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How to set up Spark on Windows?
...s guide: http://spark.apache.org/docs/latest/building-spark.html
Download and install Maven, and set MAVEN_OPTS to the value specified in the guide.
But if you're just playing around with Spark, and don't actually need it to run on Windows for any other reason that your own machine is running Wind...
MSysGit vs. Git for Windows
I am having trouble determining the difference between MSysGit and Git for Windows . How are they different? Why would I choose one over the other?
...
how does Array.prototype.slice.call() work?
I know it is used to make arguments a real array, but I don't understand what happens when using Array.prototype.slice.call(arguments)
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Adding a favicon to a static HTML page
...en the server goes down. How can I put a favicon that I made (it's 16x16px and it's sitting in the same directory as the HTML file; it's called favicon.ico) as the "tab" icon as it were? I have read up on Wikipedia and looked at a few tutorials and have implemented the following:
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Normal arguments vs. keyword arguments
...tion them after all of the arguments without names (positional arguments), and there must be default values for any parameters which were not mentioned at all.
The other concept is on the function definition side: you can define a function that takes parameters by name -- and you don't even have to...
href=“tel:” and mobile numbers
...ant to dial via the international trunk, you need to drop the trunk prefix and replace it with the international dialing prefix
+ - Short hand for the country trunk number
61 - Country code for Australia
4 - Area code for a mobile telephone
1234 5678 - Mobile telephone number...
rake db:schema:load vs. migrations
Very simple question here - if migrations can get slow and cumbersome as an app gets more complex and if we have the much cleaner rake db:schema:load to call instead, why do migrations exist at all?
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Allowed characters in Linux environment variable names
...llowed in Linux environment variable names? My cursory search of man pages and the web did only produce information about how to work with variables, but not which names are allowed.
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Math.random() explanation
...
int randomWithRange(int min, int max)
{
int range = (max - min) + 1;
return (int)(Math.random() * range) + min;
}
Output of randomWithRange(2, 5) 10 times:
5
2
3
3
2
4
4
4
5
4
The bounds are inclusive, ie [2,5], an...
Queries vs. Filters
...
The difference is simple: filters are cached and don't influence the score, therefore faster than queries. Have a look here too. Let's say a query is usually something that the users type and pretty much unpredictable, while filters help users narrowing down the search ...