JavaScript Implementation Lookup Array maximum method Rollup _javascript tips

Method one (using Recursive functions):

var arr = [9,8,55,66,49,68,109,55,33,6,2,1];
  
var max = arr[0];

function Findmax (i) {
  if (i = = arr.length) return max;
  if (Max < arr[i]) max = arr[i];
  Findmax (i+1);
}
 
Findmax (1);
Console.log (max);

Method two (using for loop traversal):

var arr = [9,8,55,66,49,68,109,55,33,6,2,1];  
var max = arr[0];
for (var i = 1; i < arr.length i++) {
  if (Max < arr[i]) {
    max = arr[i];
  }
}

Console.log (max);

Method Three (use apply to pass the array directly back into the Max method):

Math.max.apply (null,[9,8,55,66,49,68,109,55,33,6,2,1])

Note: In addition, there are many array sorting methods that can be sorted to get the maximum/minimum value based on the new array index value.

var a=[1,2,3,5];
Alert (Math.max.apply (null, a));//maximum
alert (Math.min.apply (null, a));//min value

Multidimensional arrays can be modified like this:

var a=[1,2,3,[5,6],[1,4,8]];
var ta=a.join (","). Split (",");//Convert to one-dimensional array
alert (Math.max.apply (Null,ta));//maximum
alert (NULL, TA));//min value