Following is my code of memoization which is working fine, output "Long Time" once only -

Code -

function memoAdd80() {
  let cache = {};
  return (n) => {
    if(n in cache) {
      return cache[n];
    }
    console.log('Long Time');
    const answer = n + 80;
    cache[n] = answer;
    return answer; 
  }
}

const memoized80 = memoAdd80();
console.log(memoized80(85)); // Long Time 165
console.log(memoized80(85)); // 165
console.log(memoized80(85)); // 165

Though, when writing like this - memoAdd80()(85) this caching doesn't works.

console.log(memoAdd80()(85)); // Long Time 165
console.log(memoAdd80()(85)); // Long Time 165
console.log(memoAdd80()(85)); // Long Time 165

Let me know how can I directly use memoAdd80 instead of creating a memoized variable first and then passing a value to the function.