github.com/anth0d/nomad@v0.0.0-20221214183521-ae3a0a2cad06/ui/app/helpers/dedupe-by-property.js (about) 1 // Takes an array and a property name and returns a new array with all the duplicates removed. 2 import { helper } from '@ember/component/helper'; 3 4 export default helper(function dedupeByProperty([arr], { prop }) { 5 const seen = new Set(); 6 return arr.filter((item) => { 7 const val = item[prop]; 8 if (seen.has(val)) { 9 return false; 10 } else { 11 seen.add(val); 12 return true; 13 } 14 }); 15 });