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Why are side-effects modeled as monads in Haskell?
... it produces as the input and output parameters, then the function is pure to the outside world.
So, for an impure function
f' :: Int -> Int
we add the RealWorld to the consideration
f :: Int -> RealWorld -> (Int, RealWorld)
-- input some states of the whole world,
-- modify the whole worl...
How do you move a file?
I'm using TortoiseSVN against the SourceForge SVN repository. I'd like to move a file from one folder to another in order to maintain its revision history. Is this possible? If so, how do you do it?
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When serving JavaScript files, is it better to use the application/javascript or application/x-javas
The whole question fits in the title. And to add some context: I'm not asking what is the best according to what the specs are saying, but rather what works the best given the mix of browsers deployed nowadays.
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Singleton pattern in nodejs - is it needed?
I recently came across this article on how to write a singleton in Node.js. I know the documentation of require states that:
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Search all the occurrences of a string in the entire project in Android Studio
...st started using Android Studio (IntelliJ), and I now look for the feature to find the occurrence of a string in any of the files in my project. For example: I want to find all the files that contain the string " .getUuid() "
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Programmatically get own phone number in iOS
Is there any way to get own phone number by standard APIs from iPhone SDK?
9 Answers
9...
How to override !important?
I have created a custom style sheet that overrides the original CSS for my Wordpress template. However, on my calendar page, the original CSS has the height of each table cell set with the !important declaration:
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How to create streams from string in Node.Js?
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From node 10.17, stream.Readable have a from method to easily create streams from any iterable (which includes array literals):
const { Readable } = require("stream")
const readable = Readable.from(["input string"])
readable.on("data", (chunk) => {
console.log(chunk) /...
Collection was modified; enumeration operation may not execute
I can't get to the bottom of this error, because when the debugger is attached, it does not seem to occur.
15 Answers
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How to do case insensitive string comparison?
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The simplest way to do it (if you're not worried about special Unicode characters) is to call toUpperCase:
var areEqual = string1.toUpperCase() === string2.toUpperCase();
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