这里有一个简单的泛型函数方法。使用数组指定排序顺序。前置减号以指定降序。
var homes = [
{"h_id":"3", "city":"Dallas", "state":"TX","zip":"75201","price":"162500"},
{"h_id":"4","city":"Bevery Hills", "state":"CA", "zip":"90210", "price":"319250"},
{"h_id":"6", "city":"Dallas", "state":"TX", "zip":"75000", "price":"556699"},
{"h_id":"5", "city":"New York", "state":"NY", "zip":"00010", "price":"962500"}
];
homes.sort(fieldSorter(['city', '-price']));
// homes.sort(fieldSorter(['zip', '-state', 'price'])); // alternative
function fieldSorter(fields) {
return function (a, b) {
return fields
.map(function (o) {
var dir = 1;
if (o[0] === '-') {
dir = -1;
o=o.substring(1);
}
if (a[o] > b[o]) return dir;
if (a[o] < b[o]) return -(dir);
return 0;
})
.reduce(function firstNonZeroValue (p,n) {
return p ? p : n;
}, 0);
};
}
编辑:在ES6中它甚至更短!
"use strict";
const fieldSorter = (fields) => (a, b) => fields.map(o => {
let dir = 1;
if (o[0] === '-') { dir = -1; o=o.substring(1); }
return a[o] > b[o] ? dir : a[o] < b[o] ? -(dir) : 0;
}).reduce((p, n) => p ? p : n, 0);
const homes = [{"h_id":"3", "city":"Dallas", "state":"TX","zip":"75201","price":162500}, {"h_id":"4","city":"Bevery Hills", "state":"CA", "zip":"90210", "price":319250},{"h_id":"6", "city":"Dallas", "state":"TX", "zip":"75000", "price":556699},{"h_id":"5", "city":"New York", "state":"NY", "zip":"00010", "price":962500}];
const sortedHomes = homes.sort(fieldSorter(['state', '-price']));
document.write('<pre>' + JSON.stringify(sortedHomes, null, '\t') + '</pre>')