Toggle item in array with ramda

toggleListItem.js

import { append, contains, curry, ifElse, without } from 'ramda';

const toggleListItem = curry((value, list) => ifElse(
  contains(value),
  without([value]),
  append(value),
)(list));

// Example:
const data = ['a', 'b', 'c', 'd'];

toggleListItem('b', data);
// or
toggleListItem('b')(data);
// will return ['a', 'c', 'd']

I think you do not need pipe here :

const toggleListItem = curry((value, list) => ifElse(
  contains(value),
  without(value),
  append(value),
)(list));

Demo in Ramda REPL :
https://ramdajs.com/repl/?v=0.26.1#?const%20toggleListItem%20%3D%20R.curry%28%28value%2C%20list%29%20%3D%3E%20R.ifElse%28%0A%20%20R.contains%28value%29%2C%0A%20%20R.without%28value%29%2C%0A%20%20R.append%28value%29%2C%0A%29%28list%29%29%3B%0A%0A%2F%2F%20Example%3A%0Aconst%20data%20%3D%20%5B%27a%27%2C%20%27b%27%2C%20%27c%27%2C%20%27d%27%5D%3B%0A%0AtoggleListItem%28%27d%27%29%28data%29%3B

@rdbmax Sure. Just mistake :) Thank you

Doesn't work for list of numbers

@marcoturi
Try replace without(value) to without([value]),. My fault. This function accept array of removing values