JS实现对数组进行自定义排序

/**
* 数组排序
* @param source 待排序数组
* @param orders 排序字段数组
* @param type 升序-asc 倒序-desc
* 调用：var res = $.orderBy(arr, ['OpenTime'], 'desc').results;
*/
$.orderBy = function (source, orders, type) { if (source instanceof Array && orders instanceof Array && orders.length > 0) { var ordersc = orders.concat([]);
var sorttype = type || 'asc';
var results = [];
var totalSum = {}; function grouporder(source, orders, totalSum) { source.sort(function (a, b) {
var convertA = a[orders[0]];
var convertB = b[orders[0]];
if (typeof convertA == 'string' && typeof convertB == 'string') {
if (sorttype.toUpperCase() == 'ASC') {
return convertA.localeCompare(convertB);
} else {
return convertB.localeCompare(convertA);
}
} else {
if (sorttype.toUpperCase() == 'ASC') {
return convertA - convertB;
} else {
return convertB - convertA;
}
}
}); var groupmap = new Map();
source.forEach((item) => {
if (groupmap.has(item[orders[0]])) {
groupmap.get(item[orders[0]]).push(item);
} else {
groupmap.set(item[orders[0]], []);
groupmap.get(item[orders[0]]).push(item);
}
}); orders.shift(); for (let [key, val] of groupmap) { totalSum[key] = {};
totalSum[key].name = key;
totalSum[key].value = val.length;
if (orders.length == 0) {
results = results.concat(val);
} else {
totalSum[key].children = {};
var orderscopy = orders.concat([]);
grouporder(val, orderscopy, totalSum[key].children);
}
}
} grouporder(source, ordersc, totalSum); return {
results: results,
totalSum: totalSum
};
} else {
return source;
}
}