deduplicate array js code example

Example 1: js array clone

let clone = [...myArray]

Example 2: javascript duplicate an array

let arr =["a","b","c"];
// ES6 way
const duplicate = [...arr];

// older method
const duplicate = Array.from(arr);

Example 3: remove duplicates from array javascript

arr.filter((v,i,a)=>a.findIndex(t=>(t.place === v.place && t.name===v.name))===i)

Example 4: deduplicate array javascript

function uniq(a) {
   return Array.from(new Set(a));
}