Remove duplicates with filter

After duplicates are removed, each item in the array is then set up to be an empty object so future data can be added.

by Matthew Day October 10, 2017

JavaScript

let duplicates = ['apple', 'butter', 'butter', 'cream', 'dumplings', 'dumplings', 'dumplings', 'eggs'];

let uniques = duplicates.filter((item, index, inputArray) => {
	return inputArray.indexOf(item) === index; 
}).map((item, index, inputArray) => {
  if(inputArray.indexOf(item) === index) {
  	return {[item]: {}};
  }
})

console.log(uniques);


// SOURCE
// https://stackoverflow.com/questions/18008025/remove-duplicate-item-from-array-javascript

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Remove duplicates with filter

After duplicates are removed, each item in the array is then set up to be an empty object so future data can be added.

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Console