@zodash/order-by/lib/index.js

Multiple Field Sorter, support ASC + DESC

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.orderBy = void 0;
// MDN: https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/sort
// v === 0, 位置不变
// v < 0,  a 在前
// v > 0, b 在前
function compare(a, b) {
    if (a < b)
        return -1;
    if (a > b)
        return 1;
    return 0;
}
function genrateCompareFn(factors) {
    return (a, b) => {
        let res = 0;
        factors.some(([key, order]) => {
            const sorter = compare(a[key], b[key]);
            // 当前字段相同，排序下一个字段
            if (sorter === 0) {
                return false;
            }
            // a 在前
            if (sorter < 0) {
                if (order === 'ASC') {
                    res = -1;
                }
                else if (order === 'DESC') {
                    res = 1;
                }
                else {
                    throw new Error(`Only allow ASC | DESC, but got ${order}`);
                }
                return true;
            }
            // b 在前
            if (sorter > 0) {
                if (order === 'ASC') {
                    res = 1;
                }
                else if (order === 'DESC') {
                    res = -1;
                }
                else {
                    throw new Error(`Only allow ASC | DESC, but got ${order}`);
                }
                return true;
            }
        });
        return res;
    };
}
function orderBy(dataSource, factors) {
    const compareFn = genrateCompareFn(factors);
    return dataSource.sort(compareFn);
}
exports.orderBy = orderBy;
exports.default = orderBy;