gets all args / arguments from a function

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Sun Aug 10 2025 02:46:40 GMT+0000 (Coordinated Universal Time)

Saved by @davidmchale #functional #args #arguments

function howMany(){
  console.log(arguments); // 
}


howMany(3,4,5,6,7,8,90,)



//prints
Arguments(7) [3, 4, 5, 6, 7, 8, 90, callee: (...), Symbol(Symbol.iterator): ƒ]
// shows an array and we can do something like



function howMany() {
  let total = 0;
  for (let value of arguments) {
    total += value;
  }
  console.log(total);
  return total;
}

howMany(3, 4, 5, 6, 7, 8, 90);

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@davidmchale

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[ "mega:17", "$serialMonitor:TX", "" ],
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{
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  "author": "Uri Shaked",
  "editor": "wokwi",
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print(sys.argv[0])  # Outputs: script.py
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print(sys.argv[2])  # Outputs: arg

#functional #args #arguments

gets all args / arguments from a function

function howMany(){
  console.log(arguments); // 
}


howMany(3,4,5,6,7,8,90,)



//prints
Arguments(7) [3, 4, 5, 6, 7, 8, 90, callee: (...), Symbol(Symbol.iterator): ƒ]
// shows an array and we can do something like



function howMany() {
  let total = 0;
  for (let value of arguments) {
    total += value;
  }
  console.log(total);
  return total;
}

howMany(3, 4, 5, 6, 7, 8, 90);

#arguments #spread

airbnb/javascript: JavaScript Style Guide

// bad
function concatenateAll() {
  const args = Array.prototype.slice.call(arguments);
  return args.join('');
}

// good
function concatenateAll(...args) {
  return args.join('');
}

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