JSFiddle - React, Tailwind, and code Playground
HTML
<div class="container"><div>
JavaScript
var arr = [], arr2 = [];
arr['5u'] = 250;
arr['1u'] = 120;
arr['7u'] = 670;
arr['2u'] = 210; //<-----
arr['9u'] = 850; //<-----
arr['8u'] = 129; //<-----
arr['3u'] = 382;
arr['6u'] = 391;
arr['4u'] = 432;
var count = 0;
for(var i in arr){
if(count == 3 || count == 4 || count == 5)
arr2.push(arr[i]);
count++;
}
console.log(arr2)