Array of arrays, get first element and length. Javascript [closed]

Question

Here is picture of my data I have:

Im trying to get array of objects, which will look like this:

[{
    length: 2,
    item: {
       imgSource: "/sushi/test2.png"
       ingredients: "Nori, Cucumber, Rice, Cream cheese, Sesame, Unagi sauce"
       name: "sushi1"
       price: 133
       weight: 120}
}, 

{   
    length: 1,
    item: {
       imgSource: "/sushi/test1.png"
       ingredients: "Salmon, Nori, Cucumber, Rice, Cream cheese"
       name: "sushi2"
       price: 119
       weight: 120}
}]

The best way i think of is to use reduce function, but i have no idea how to use it right, can anyone help me?

Answer 1

1. Make a loop through all items of your array

2. Compare objects of the current item and the result array (How to determine equality for two JavaScript objects?)

3. If the same item found - inc the value "length" of that result array.

4. If it is not found - add a new item to the result array with the length = 1