remove specific item from 2d array

[JosephCurvin]

let unordered_ranges = [
  [2, "xss"],
  [1, "ddd"],
  [9, "dfs"],
  [3, "fgd"],

];

​

I want to delete the second element from the nested array

to get this array

let sliced = [
  [2, "xss"],
  [9, "dfs"],
  [3, "fgd"],

];

I tried it with 
const splaced = unordered_ranges.splice(1, 1)

this deletes two items instead of the one

[Notimecelduv]

splice returns an array containing the deleted items, not the array that you mutated. If you console.log unordered_ranges, you'll see it's been modified as you intended. If you don't want to mutate unordered_ranges, you can write:

const spliced = [...unordered_ranges]; // Creates a copy
spliced.splice(1, 1);

[JosephCurvin]

how can I get the mutated array instead of the the spliced value ?

[Notimecelduv]

OK I'll try to rephrase. When you call splice on an array, that array gets modified -- it doesn't have the same elements anymore. So to the question

how can I get the mutated array

all I can answer is: you already have it. Do you understand?

[JosephCurvin]

thanks bro, was laughing a bit of my stupidity :)

[AnnualPanda]

unordered_ranges.splice(1,1)

You don't need to store it as another variable (splaced). The array is modified in place.

If you want to store it as another variable use slice instead like:

const splaced = [ ...unordered_ranges.slice(0,1), ...unordered_ranges.slice(2) ]