Get (min / max value) of (object array / array)

 An array of objects 
list: [{
    
icount: "61"
keyword_rank: "1"
keywords: " The difference between a cold start and a hot start "},
      {
    
icount: "62"
keyword_rank: "1"
keywords: " The difference between a cold start and a hot start "},
      {
    
icount: "63"
keyword_rank: "1"
keywords: " The difference between a cold start and a hot start "},
      {
    
icount: "64"
keyword_rank: "1"
keywords: " The difference between a cold start and a hot start "}
]

//  Maximum 
Math.max.apply(null, list.map(function (item) {
    return item.icount}))
//  minimum value 
Math.min.apply(null, list.map(function (item) {
    return item.icount}))


 Array 
let arr = [40, 50, 20, 60, 70, 20, 90, 100, 105, 20, 105]
ES5  Method 
//  Maximum 
Math.max.apply(null, arr)
//  minimum value 
Math.min.apply(null, arr)



ES6  Method 
//  Maximum 
Math.max(...arr)
//  minimum value 
Math.min(...arr)