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Javascript reduce on array of objects
...lue: Y): X { }
That means that the body of the reducer needs to be about converting currentValue and the current value of the accumulator to the value of the new accumulator.
This works in a straightforward way, when adding, because the accumulator and the element values both happen to be the sam...
What is the meaning of “POSIX”?
What is POSIX? I have read the Wikipedia article and I read it every time I encounter the term. The fact is that I never really understood what it is.
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Recommended date format for REST GET API
... timezone setting of user's device/browser.
Cons:
Extra processing for converting to UTC for storing in UTC format in the database.
Readability of input/output.
Readability of GET URLs.
Notes:
Timezones are a presentation-layer problem! Most of your code shouldn't be dealing with timezones o...
JavaScript and Threads
...ge:
//As a worker normally take another JavaScript file to execute we convert the function in an URL: http://stackoverflow.com/a/16799132/2576706
function getScriptPath(foo){ return window.URL.createObjectURL(new Blob([foo.toString().match(/^\s*function\s*\(\s*\)\s*\{(([\s\S](?!\}$))*[\s\S])/)...
How to check if an object is a certain type
...different object each time. For example, in one case I am using a ListView and in another case I am passing a DropDownList.
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List vs List
...( aMap ); // Perfectly legal (adding a Map to a List of Maps)
// But maps and hashMaps are the same object, so this should be the same as
hashMaps.add( aMap ); // Should be illegal (aMap is not a HashMap)
So this is why a List of HashMaps shouldn't be a List of Maps.
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Do HTML WebSockets maintain an open connection for each client? Does this scale?
...end on how well the current AJAX/long-poll model is working. The effort to convert will be non-trivial so in many cases the cost just won't be worth the benefit.
Update:
Useful link: 600k concurrent websocket connections on AWS using Node.js
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How to write header row with csv.DictWriter?
...g (i.e. do-nothing) dict out of your fieldnames so that csv.DictWriter can convert it back to a list and pass it to a csv.writer instance.
(2) The documentation mentions "the underlying writer instance" ... so just use it (example at the end).
dw.writer.writerow(dw.fieldnames)
(3) Avoid the csv...
Can “using” with more than one resource cause a resource leak?
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@WeylandYutani: What are you asking?
– SLaks
Jan 14 '14 at 16:18
9
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Do python projects need a MANIFEST.in, and what should be in it?
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@Ame I agree, things moved on. Currently I am converting most my projects from pbr to poetry
– Jan Vlcinsky
Dec 28 '18 at 0:57
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