Sure, here is a script to generate the first 100 Fibonacci numbers:

function generateFibonacci(n) {
  let fibSequence = [];
  let a = 0, b = 1, nextTerm;

  for (let i = 1; i <= n; i++) {
    fibSequence.push(a);
    nextTerm = a + b;
    a = b;
    b = nextTerm;
  }
  return fibSequence;
}

const first100FibonacciNumbers = generateFibonacci(100);
console.log(first100FibonacciNumbers);

Here are the first 100 Fibonacci numbers:

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 
6765, 10946, 17711, 28657, 46368, 75025, 121393, 196418, 317811, 514229, 832040, 
1346269, 2178309, 3524578, 5702887, 9227465, 14930352, 24157817, 39088169, 63245986, 
102334155, 165580141, 267914296, 433494437, 701408733, 1134903170, 1836311903, 2971215073,
4807526976, 7778742049, 12586269025, 20365011074, 32951280099, 53316291173, 86267571272,
139583862445, 225851433717, 365435296162, 591286729879, 956722026041, 1548008755920,
2504730781961, 4052739537881, 6557470319842, 10610209857723, 17167680177565, 27777890035288,
44945570212853, 72723460248141, 117669030460994, 190392490709135, 308061521170129, 498454011879264,
806515533049393, 1304969544928657, 2111485077978050, 3416454622906707, 5527939700884757,
8944394323791464, 14472334024676220, 23416728348467684, 37889062373143900, 61305790721611580,
99194853094755490, 160500643816367070, 259695496911122560, 420196140727489660, 679891637638612200,
1100087778366101900, 1779979416004714000, 2880067194370816000, 4660046610375530000, 7540113804746346000,
12200160415121877000, 19740274219868226000, 31940434634990100000, 51680708854858330000, 83621143489848430000,
135301852344706760000, 218922995834555200000

If you need more information or another task, feel free to ask!

Here is a script to sum up the first 100 Fibonacci numbers:

function generateFibonacci(n) {
  let fibSequence = [];
  let a = 0, b = 1, nextTerm;

  for (let i = 1; i <= n; i++) {
    fibSequence.push(a);
    nextTerm = a + b;
    a = b;
    b = nextTerm;
  }
  return fibSequence;
}

function sumFibonacciNumbers(fibSequence) {
  return fibSequence.reduce((acc, num) => acc + num, 0);
}

const first100FibonacciNumbers = generateFibonacci(100);
const sumOfFirst100FibonacciNumbers = sumFibonacciNumbers(first100FibonacciNumbers);
console.log(sumOfFirst100FibonacciNumbers);

The sum of the first 100 Fibonacci numbers is:

573,147,844,013,817,200,000

If you need further assistance, feel free to ask!