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How to maintain aspect ratio using HTML IMG tag
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This makes no sense for dynamic applications. It is not known whether width or height will be at 64px, as it depends on the ratio of the image. Why is this the upvoted response?
– Koenigsberg
Jul 31 '18 at 8:45
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Renaming table in rails
... table (or SQLite or PostgreSQL, depending on what database you're using). Now, as it happens, ActiveRecord::ConnectionAdapters::MysqlAdapter is already accessible through Model.connection, so you should be completely able to do Model.connection.rename_table, using any model in your application.
[/E...
Merge/flatten an array of arrays
... native method called flat to do this exactly.
(As of late 2019, flat is now published in the ECMA 2019 standard, and core-js@3 (babel's library) includes it in their polyfill library)
const arr1 = [1, 2, [3, 4]];
arr1.flat();
// [1, 2, 3, 4]
const arr2 = [1, 2, [3, 4, [5, 6]]];
arr2.flat();
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How to check if a specified key exists in a given S3 bucket using Java
...king for the presence of the key if you dont have ListBucket access. Just knowing whether a key is present or not, will also suffice for malicious users in some cases. Hence unless they have ListBucket access they will not be able to do so.
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Using Rails 3.1, where do you put your “page specific” JavaScript code?
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+1 This is great to know for a newbie like me. I'd give it +2 if I could.
– jrhorn424
Mar 17 '12 at 22:16
6
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Create a new object from type parameter in generic class
...ng (actually want to learn) but calling it hacky and redundant infers you know of another way that you aren't sharing :)
– perry
Feb 25 at 23:14
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GitHub Windows client behind proxy
...nfig with:
[https] proxy = localhost:3128
[http] proxy = localhost:3128
Now cntlm will do all the authentication, and you'll be able to use GitHub(and Dropbox, btw) behind the corp proxy. At least until next password change :) (than do cntlm -H stuff again)
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Loadbalancing web sockets
...ffic in one or say very few connections. for simplicity say one connection now how can I balance the requests going through one web socket connection?
– user1870400
Jan 28 '17 at 9:35
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Handling very large numbers in Python
... example of a huge integer value, fib(4000000).
But still it does not (for now) supports an arbitrarily large float !!
If you need one big, large, float then check up on the decimal Module. There are examples of use on these foruns: OverflowError: (34, 'Result too large')
Another reference: http://d...
Best way to serialize an NSData into a hexadeximal string
..., and >'s. Stripping characters just feels too "hacky". Plus you never know if Apple will change the formatting of NSData's -description in the future.
NOTE: I have had people reach out to me about licensing for the code in this answer. I hereby dedicate my copyright in the code I posted in this...