Javascript 数组分页

我正在尝试编写一个 Javascript 函数，该函数需要array, page_size and page_number作为参数并返回一个模仿分页结果的数组：

paginate: function (array, page_size, page_number) {
  return result;
}

例如当：

array = [1, 2, 3, 4, 5],
page size = 2,
page_number = 2,

该函数应该返回：[3, 4].

任何想法，将不胜感激。

您可以使用Array.prototype.slice https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/slice只需提供参数即可(start, end).

function paginate(array, page_size, page_number) {
  // human-readable page numbers usually start with 1, so we reduce 1 in the first argument
  return array.slice((page_number - 1) * page_size, page_number * page_size);
}

console.log(paginate([1, 2, 3, 4, 5, 6], 2, 2));
console.log(paginate([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11], 4, 1));