如何将 lodash 函数转换为 ES6？

Question

How can I convert my current Lodash function?

import _ from 'lodash';

export const paginate = (items, pageNumber, pageSize) => {
    const startIndex = (pageNumber - 1) * pageSize;

    return _(items)
        .slice(startIndex)
        .take(pageSize)
        .value();
};

Answer 1

You only need Array.slice for the conversion but you also never needed anything else in lodash either:

 let arr = [1,2,3,4,5,6] const paginate = (items, pageNumber, pageSize) => { const startIndex = (pageNumber - 1) * pageSize; return items.slice(startIndex, startIndex + pageSize) }; console.log(paginate(arr, 1, 2)) console.log(paginate(arr, 2, 2)) console.log(paginate(arr, 3, 2)) console.log(paginate(arr, 1, 3)) console.log(paginate(arr, 2, 3))

You could have just used _.slice in lodash:

return _.slice(items, startIndex, startIndex + pageSize)