Question

How to convert HH:MM:SS format to seconds in JavaScript

Answer 1

const s = "01:1:01"; 

const arr = s.split(":"); 

const seconds = arr[0] * 3600 + arr[1] * 60 + (+arr[2]); 

console.log(seconds);

  
  
    
    
/*
run:
    
3661
    
*/

 

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Answer 2

function convertHHMMSSToSeconds(s) {
  const arr = s.split(":");
  const seconds = arr[0] * 3600 + arr[1] * 60 + (+arr[2]); 
  
  return seconds;
}

console.log(convertHHMMSSToSeconds("01:1:32")); 


  
  
    
    
/*
run:
    
3692
    
*/

 

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