JAVASCRIPT

repeat string n times javascript

"a".repeat(10)

repeat call n times in js

// repeat call n times with identical parameters
// call is an async function
export const repeatCall = (call, {
  repeat = 1,
  params = [] // params is an array containing the parameters to `call` in the expected sequence 
}) => {

  const calls = [];

  for (let i = 0; i < repeat; i++) {
    calls.push(call(...params));
  }
  return calls;
}

// repeat call n times with unique parameters for each call
export const repeatUniqueCall = (call, {
  params = [] // params should be an array of arrays where each nested array with index i represents the params for call i
}) => {

  const calls = [];

  for (let i = 0; i < params.length; i++) {
    calls.push(call(...params[i]));
  }
  return calls;
}

// usage below
const myAsyncFunction = async (param1, param2) => {
  return await doSomething(param1, param2);
};

Promise.all(
  repeatCall(
    myAsyncFunction,
    {
      repeat: 3,
      params: ['value1', 'value2'],
    }
  ))
  .then((responses) => {
    // do something with responses
  })