JSFiddle - React, Tailwind, and code Playground

by Mohammed Sameer

JavaScript

arr = [["1","Normal","0.00","1"],
["2","High","0.00","1"],
["3","Medium","0.00","1"],
["3","Medsium","0.00","1"]];

function multiDimensionalUnique(arr, pos) {
    var uniques = [];
    var itemsFound = {};
    var stringifiedPosObj = JSON.stringify(arr[pos]);
    itemsFound[stringifiedPosObj] = true;
    for(var i = 0, l = arr.length; i < l; i++) {
    	if(i !== pos) {
        var stringified = JSON.stringify(arr[i]);
        if(itemsFound[stringified]) { return true; break; }
      }
    }
    return false;
}

alert(multiDimensionalUnique(arr, 3));