Questions tagged [currying]

Currying involves converting a multi-argument function into a single-argument function that generates another function with one less argument. This technique is commonly used in languages like Haskell to simplify programming tasks such as partial application.

How to Set Focus on React Element Dynamically Without Using an Arrow Function

I have recently been working on a code snippet that is performing very efficiently: import React, { RefObject, useReducer, useRef, useState } from 'react'; import TextField from '@material-ui/core/TextField'; const MyComponent ...

Guide on looping through deeply nested children within an object to accumulate a list of names

Within an object, there are numerous parent and child elements var obj={ name: 'one', child:{ name: 'two', child:{ name: 'three', child.. } } } foo(obj) Create a ...

javascript oop currying

Exploring the Power of Currying and Implementing mapStateToProps in

Recently, I've been working on improving my knowledge of CS concepts. One idea that caught my attention is currying. Interestingly, it seems to have similarities with the way redux/react works when using connect. Would it be accurate to refer to this ...

reactjs redux currying

Guidelines for accessing the value of the parent function upon clicking the button within the child function?

I have a pair of buttons labeled as ok and cancel. <div class="buttons-div"> <button class='cancel'>Cancel</button> <button class='ok'>Ok</button> </div> The functions I am working wi ...

javascript html css currying

Using JavaScript/Angular to borrow a function and add additional parameters

In my scenario, I have a service function that requires a static parameter and a second custom parameter that changes based on the controller it is being used in. I am looking for a way for my controller/view to invoke this service function without havin ...

javascript angularjs call bind currying

TypeScript typings for generic currying functions

I'm struggling to improve my skills in functional programming, particularly when dealing with typing generic "curry" functions. One example is a "Curry" version of the reduce function that I've written: const reduce = <S, R>(fn: (result: R ...

typescript generics currying

Currying disrupts the inference of argument types as the argument list is divided in half, leading to confusion

One of my favorite functions transforms an object into a select option with ease. It's written like this: type OptionValue = string; type OptionLabel = string; export type Option<V extends OptionValue = OptionValue, L extends OptionLabel = OptionL ...

typescript typescript-generics type-inference currying function-signature

What steps are involved in setting up a sorting feature?

In order to utilize the array.sort() function, a number-returning function must be specified. Typically, it would look something like this: myArray.sort((item1, item2) => a < b); However, I am aiming for a different structure: myArray.sort(by(obj ...

typescript currying arrow-functions

What is the optimal parameter order when utilizing pre-curried functions and composition in JavaScript?

We have a simple, mathematically curried function for subtracting numbers: function sub(x) { return function (y) { return x - y; }; }; sub(3)(2); // 1 The function signature matches the obtained result. However, when function composition comes i ...

javascript parameters functional-programming composition currying

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