Question

How to pass to a function any number of arguments in Node.js

Answer 1

function PrintAll(...args) {
  console.log(args); // args is an array containing all arguments
  console.log(args[0]);
}
  
PrintAll(1, 2, 3, 4); 
PrintAll('a', 'b', 'c', 'd', 'e'); 
  
  
  
/*
run:
  
[ 1, 2, 3, 4 ]
1
[ 'a', 'b', 'c', 'd', 'e' ]
a
  
*/

 

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Answer 2

function PrintAll(...args) {
  console.log(arguments);
  console.log(arguments[0]);
}
  
PrintAll(1, 2, 3, 4); 
PrintAll('a', 'b', 'c', 'd', 'e'); 
  
  
  
/*
run:
  
[Arguments] { '0': 1, '1': 2, '2': 3, '3': 4 }
1
[Arguments] { '0': 'a', '1': 'b', '2': 'c', '3': 'd', '4': 'e' }
a
  
*/

 

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