Array Unique Javascript Code Example

Example 1: javascript array unique values

var arr = [55, 44, 65,1,2,3,3,34,5]; var unique = [...new Set(arr)]  //just  var unique = new Set(arr) wont be an array

Example 2: javascript find unique values in array

// usage example: var myArray = ['a', 1, 'a', 2, '1']; var unique = myArray.filter((v, i, a) => a.indexOf(v) === i);   // unique is ['a', 1, 2, '1']

Example 3: array unique values javascript

const myArray = ['a', 1, 'a', 2, '1']; const unique = [...new Set(myArray)]; // ['a', 1, 2, '1']

Example 4: unique values in array javascript

let uniqueItems = [...new Set(items)]

Example 5: javascript get unique values from array

const myArray = [1,2,3,1,5,8,1,2,9,4]; const unique = [...new Set(myArray)]; // [1, 2, 3, 5, 8, 9, 4]  const myString = ["a","b","c","a","d","b"]; const uniqueString = [...new Set(myString)]; //["a", "b", "c", "d"]

Example 6: javascript get distinct values from array

const categories = ['General', 'Exotic', 'Extreme', 'Extreme', 'General' ,'Water', 'Extreme'] .filter((value, index, categoryArray) => categoryArray.indexOf(value) === index);  This will return an array that has the unique category names ['General', 'Exotic', 'Extreme', 'Water']