how to remove same elements from array and add count to other objects javascript? [duplicate]

Question

I have 1 object (it came from localstroage). But there are some dublicates. how can i remove it from easy way?

"mainchart" is my array object.

function check() {
  for (let i1 = 0; i1 < mainchart.length; i1++) {
    for (let i2 = 0; i2 < mainchart.length; i2++) {  
      if (mainchart[i1].id === mainchart[i2].id) {
        console.log(mainchart[i1] , mainchart[i2]);
      }
    }
  }
}

check();

Does this answer your question? Counting the occurrences / frequency of array elements — user16540390
– user16540390, Commented Mar 11, 2022 at 21:05

Yesenia Hernández · Accepted Answer · 2022-03-11 21:08:40Z

-1

An easy way to remove duplicate values from an array is converting the array in to a set (collection of unique values), putting the values of the set in a new array:

let array1 = ["a", "b", true, 3, 67, true, "a"];

let array2 = [...new Set(array1)];

console.log(array2); // [ 'a', 'b', true, 3, 67 ]

Hope it can help you 🦄

answered Mar 11, 2022 at 21:08

Yesenia Hernández

161 bronze badge

Sign up to request clarification or add additional context in comments.

2 Comments

user16540390 Over a year ago

"how to remove same elements from array and add count to other objects javascript?" Where do you count? Your code doesn't work with objects, only with primitives.

simple.nihad Over a year ago

i want to know how many element get removed

Collectives™ on Stack Overflow

how to remove same elements from array and add count to other objects javascript? [duplicate]

1 Answer 1

2 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Linked

Related