HOF-filter-examples.js

// Example 1:

const productsAsStrings = [
    'iphone', 'mug', 'hat'
  ]

const deleteProd = toBeDeleted => {
  const filteredArr = productsAsStrings.filter(el => el !== toBeDeleted)
  return filteredArr;
}

deleteProd('hat')
// return: [ 'iphone', 'mug' ]

// Example 2:

const productsAsObjects = [
   {
        _id: '34rg',
        name: 'iPhone X',
        price: 799.99,
        inStock: true
      },
      {
        _id: '36gu',
        name: 'iron',
        price: 29.99,
        inStock: false
      },
      {
        _id: '97ux',
        name: 'coffee mug',
        price: 9.0,
        inStock: true
      }
  ]

const deleteProd = toBeDeleted => {
  const filteredArr = productsAsObjects.filter(el => el._id !== toBeDeleted._id)
  return filteredArr;
}

deleteProd({
        _id: '97ux',
        name: 'coffee mug',
        price: 9.0,
        inStock: true
      })

// return:
// [
//   { _id: '34rg', name: 'iPhone X', price: 799.99, inStock: true },
//   { _id: '36gu', name: 'iron', price: 29.99, inStock: false }
// ]