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Computed read-only property vs function in Swift

...eap (properties) or possibly expensive (functions). We will probably get more clarity when Apple publishes some Swift coding conventions. share | improve this answer | foll...
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Why are my basic Heroku apps taking two seconds to load?

...g my Heroku app every 5 minutes for free - it tells me I have a 200OK (and more importantly when I don't) and it keeps the app responsive. I make no apologies for this; I have 10 heroku apps, most of which are dev or demo apps, but this one in particular is live/production and despite low traffic i...
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prototype based vs. class based inheritance

... of a fixed class set at compile time. In the open-class version, you had more flexibility; in the newer version, you had the ability to check some kinds of correctness at the compiler that would otherwise have required testing. In a "class-based" language, that copying happens at compile time. I...
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What is the largest TCP/IP network port number allowable for IPv4?

...we support?" "Just make it 16 bits for good measure. No one will ever have more than a few hundred open at once, tops." – JessieArr Sep 12 '14 at 13:41 ...
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Shortcut to Apply a Formula to an Entire Column in Excel [closed]

... the little box in the right-hand corner downwards to apply the formula to more cells of the column. Unfortunately, I need to do this for 300,000 rows! ...
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Remove duplicates from an array of objects in JavaScript

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What is /dev/null 2>&1?

... redirect the program output and append the output at the end of the file. More... Part 2: /dev/null special file This is a Pseudo-devices special file. Command ls -l /dev/null will give you details of this file: crw-rw-rw-. 1 root root 1, 3 Mar 20 18:37 /dev/null Did you observe crw? Which ...
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Get all directories within directory nodejs

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Is the order of elements in a JSON list preserved?

...rmat (emphasis mine): An object is an unordered collection of zero or more name/value pairs, where a name is a string and a value is a string, number, boolean, null, object, or array. An array is an ordered sequence of zero or more values. The terms "object" and "array" come from ...
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How to send HTTP request in java? [duplicate]

...et something as succinct, but then you lose lots of the flexibility of the more barebones approach. – fortran Feb 17 '15 at 23:54 9 ...