Lodash按属性排序/排序数组

Question

我有以下对象数组:

var tasks = [
   { importance: 'moderate', task: 'do laundry' },
   { importance: 'critical', task: 'brush teeth' },
   { importance: 'important', task: 'buy milk' },
   { importance: 'unimportant', task: 'wash car' },
];

如何使用lodash排序或命令函数按重要性级别排序我的数组？

Answer 1

你可以不用lodash做到这一点:

var tasks = [
   { importance: 'moderate', task: 'do laundry' },
   { importance: 'critical', task: 'brush teeth' },
   { importance: 'important', task: 'buy milk' },
   { importance: 'unimportant', task: 'wash car' },
];

var priorityIndex = {unimportant: 1, moderate: 2, important: 3, critical: 4};

tasks.sort((a, b) =>  priorityIndex[a.importance] - priorityIndex[b.importance]);

console.log(tasks);