Question

How to get the max date from an array of dates in JavaScript

Answer 1

function maxDate(dates) {
    let max = dates[0],
    obj = new Date(dates[0]);
 
    dates.forEach(function(dt) {
      if (new Date( dt ) > obj) {
        max = dt;
        obj = new Date(dt);
      }
    });
    
    return max;
}
 
const dates = ['2020/03/20', '2020/05/21', '2020/01/13', '2020/01/14', '2020/05/20']; 
           
console.log(maxDate(dates));
  
  
  
  
/*
run:
  
"2020/05/21"
 
*/

 

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Answer 2

const dates = ['2020/03/20', '2020/05/21', '2020/01/13', '2020/01/14', '2020/05/20']; 
  
const max = dates.reduce(function(a, b) { return a > b ? a : b; });
  
console.log(max);
   
   
   
/*
run:
   
"2020/05/21"
  
*/

 

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