one of the recent problems encountered by the project is
splice(index,n,data)
will become an array to directly replace the selected data. Does Daniel know how to split the array replaced by the index position ? (there are other ways to implement it.)
let list = [1, 2, 3, 7, 8];
list.splice(3, 1, ...[4, 5, 6, 7]);
console.log(list);ES6
var list = [1, 2, 3, 7, 8];
list.splice.apply(list, [3, 1].concat([4, 5, 6, 7]));
console.log(list);ES5
splice (index,n,.data)
splice (index,n,data) this statement itself is an array that replaces the index position and separates it separately. Your needs have been met.
ES6 array flattening
let list= [];
list=list.flat (Infinity);
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