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How to check if there's nothing to be committed in the current branch?
...se error. [: ??: binary operator expected. I think maybe we should try use base64 to encode it. let me try! downloading base64 command tools .... lol
– 9nix00
Feb 28 '11 at 7:57
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Converting file size in bytes to human-readable string
... After, and Diff. The cleanup operation resulted in the growth of some database tables, and the reduction in others. For example, Table A has a diff of -1.95 MB, while Table B has a diff of 500 kB. Therefore: positive and negative :-)
– Aaron Blenkush
May 2 '14...
Loadbalancing web sockets
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Put a L3 load-balancer that distributes IP packets based on source-IP-port hash to your WebSocket server farm. Since the L3 balancer maintains no state (using hashed source-IP-port) it will scale to wire speed on low-end hardware (say 10GbE). Since the distribution is determi...
ASP.NET Temporary files cleanup
...OS's (Vista, Win7, etc.) - the temp file path has changed may be different based on several variables. The items below are not definitive, however, they are a few I have encountered:
"temp" environment variable setting - then it would be:
%temp%\Temporary ASP.NET Files
Permissions and what appl...
What is the equivalent of “!=” in Excel VBA?
...h their length in the beginning and the content itself right after that. C-based and Java languages, on the other hand, do not store the length and have the '\0' (null) terminator to signal that the string ended. Because of that, getting the length in VBA is fast -- it's just reading an integer from...
ReactJS state vs prop
...it change over time? If not, it probably isn't state.
Can you compute it based on any other state or props in your
component? If so, it's not state.
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Hashset vs Treeset
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This advice is based on the fact that for a set, you must check to see if an item is a duplicate before adding it; therefore you'll save time eliminating the duplicates if you are using an hashset over a treeset. However, considering the pr...
Python int to binary string?
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For a more general philosophy, no language or library will give its user base everything that they desire. If you're working in an environment that doesn't provide exactly what you need, you should be collecting snippets of code as you develop to ensure you never have to write the same thing twice...
XmlSerializer giving FileNotFoundException at constructor
...} else { Fallback } instead of try { Load } catch { Fallback }. Exception-based flow control smells bad and makes my debugging experience more difficult and brittle than necessary.
– Timbo
Jul 28 '15 at 22:19
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What is the difference between pluck and collect in Rails?
...ects with all fields loaded and you simply get the id thanks to the method based on Enumerable.
So:
if you only need the id with Rails 4, use ids: User.first.gifts.ids
if you only need some fields with Rails 4, use pluck: User.first.gifts.pluck(:id, :name, ...)
if you only need one field with Rai...