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In Python, how can you load YAML mappings as OrderedDicts?
...ict at all due to the new dict implementation that has been in use in pypy for some time (although considered CPython implementation detail for now).
Update: In python 3.7+, the insertion-order preservation nature of dict objects has been declared to be an official part of the Python language spec,...
What's a standard way to do a no-op in python?
...e constructs in python, and I want to include options which can occur, but for which the corresponding action is to do nothing. I realise I could just exclude those if statements, but for readability I find it helps to include them all, so that if you are looking through the code you can see what ha...
Fixing the order of facets in ggplot
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Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
To find whether a column exists in data frame or not
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Awesome answer. How do I extend this if I'd be looking for columns 'd' and 'e' and 'f'? Would that be: if("d" & "e" & "f" %in% colnames(dat)) { cat("Yep, it's in there!\n"); }. Thanks! -- Oh, I may have found the answer myself: stackoverflow.com/questions/21770912/….
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fork() branches more than expected?
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The fork() primitive often stretches the imagination. Until you get a feel for it, you should trace out on paper what each operation is and account for the number of processes. Don't forget that fork() creates a near-perfect co...
Get Unix Epoch Time in Swift
...lis.com and then parse the html of the page. Note that you have to account for networking delays and check for connectivity. I decided to just use Foundation...
– Chase Roberts
Dec 9 '16 at 20:23
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Recreating a Dictionary from an IEnumerable
... I still had to google this. You'd think that there would be a constructor for Dictionary that took a IEnumerable<KeyValuePair<TKey, TValue>> just like List<T> takes a IEnumerable<T>. Also there is no AddRange or even Add that takes key/value pairs. What's up with that?
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Why declare a struct that only contains an array in C?
... Beware of doing this with arrays, more than say 16 or 32 bytes, for functions that don't inline: it's more efficient to pass them by const-reference, unless the callee already needs a tmp copy it can destroy. If the call / return don't optimize away, a medium to large array (thousands of...
How to encode URL parameters?
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Using new ES6 Object.entries(), it makes for a fun little nested map/join:
const encodeGetParams = p =>
Object.entries(p).map(kv => kv.map(encodeURIComponent).join("=")).join("&");
const params = {
user: "María Rodríguez",
awesome: true...
Int to Char in C#
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(char)myint;
for example:
Console.WriteLine("(char)122 is {0}", (char)122);
yields:
(char)122 is z
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