In a javascript array, how do I get the last 5 elements, excluding the first element?

Question

[1, 55, 77, 88] // ...would return [55, 77, 88]

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adding additional examples:

[1, 55, 77, 88, 99, 22, 33, 44] // ...wo         


        

Answer 1

ES6 way:

I use destructuring assignment for array to get first and remaining rest elements and then I'll take last five of the rest with slice method:

const cutOffFirstAndLastFive = (array) => {
  const [first, ...rest] = array;
  return rest.slice(-5);
}

cutOffFirstAndLastFive([1, 55, 77, 88]);

console.log(
  'Tests:',
  JSON.stringify(cutOffFirstAndLastFive([1, 55, 77, 88])),
  JSON.stringify(cutOffFirstAndLastFive([1, 55, 77, 88, 99, 22, 33, 44])),
  JSON.stringify(cutOffFirstAndLastFive([1]))
);