A JavaScript function to call multiple functions and return all results as one.

multipleFunctionCaller.js

function callAllFunctions(functionsObj) {
  const resultsArr = [];

  // Loop through each key-value pair in the object
  for (let key in functionsObj) {
    if (typeof functionsObj[key] === 'function') {
      const result = functionsObj[key](); // Call the current function
      resultsArr.push(result); // Add the result to array
    }
  }

  return resultsArr;
}

const exampleFunctions = {
  hello: function() { return ["Hello"] },
  world: function() { return ["World"] }
};

console.log(...callAllFunctions(exampleFunctions));
/* Output: 
["Hello"] 
["World"]
*/