SOURCE

function chunk(arr, size) {

  var arr2=[];
  for(var i=0;i<arr.length;i=i+size){
    arr2.push(arr.slice(i,i+size));
  }

  return arr2;
}
let tableList = [
    {
        name:'iu'
    },
     {
        name:'iu1'
    },
     {
        name:'iu2'
    },
     {
        name:'iu3'
    },
     {
        name:'iu4'
    },
     {
        name:'iu5'
    },
     {
        name:'iu6'
    },
]

let reverse = chunk(tableList, 3)
console.log(reverse[0])
console.log(reverse[1])
console.log(reverse[2])