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sortby
稳定排序#xff0c;可保留集合序列原始顺序仅仅支持升序#xff0c;无排序方向#xff0c;不支持降序#xff0c;如果需要降序则需要额外调用 reverse() 函数支持多字段排序
orderby
稳定排序#xff0c;可保留集合序列原始顺序支持指定升序和降序的排序…
对比
sortby
稳定排序可保留集合序列原始顺序仅仅支持升序无排序方向不支持降序如果需要降序则需要额外调用 reverse() 函数支持多字段排序
orderby
稳定排序可保留集合序列原始顺序支持指定升序和降序的排序方向支持多字段排序
例子
sortby
单独调用
import _ from lodash
var users [{ user: fred, age: 48 },{ user: barney, age: 36 },{ user: fred, age: 40 },{ user: barney, age: 34 }
];_.sortBy(users, [function(o) { return o.user; }]);
// objects for [[barney, 36], [barney, 34], [fred, 48], [fred, 40]]_.sortBy(users, [user, age]);
// objects for [[barney, 34], [barney, 36], [fred, 40], [fred, 48]]
链式调用
import _ from lodash
var users [{ user: fred, age: 48 },{ user: barney, age: 36 },{ user: fred, age: 40 },{ user: barney, age: 34 }
];// 分组排序-升序
let agg _.chain(users).countBy((item) (item.user)).map((count,key)({count:count,key:key})).sortBy((o) o.count).value() //升序// 分组排序-降序
let agg _.chain(users).countBy((item) (item.user))
.map((count,key)({count:count,key:key}))
.sortBy( count)
.reverse()
.value()
orderby
单独调用
import _ from lodash
var users [{ user: fred, age: 48 },{ user: barney, age: 34 },{ user: fred, age: 40 },{ user: barney, age: 36 }
];// Sort by user in ascending order and by age in descending order.
_.orderBy(users, [user, age], [asc, desc]);
// objects for [[barney, 36], [barney, 34], [fred, 48], [fred, 40]]
链式调用
import _ from lodash
var users [{ user: fred, age: 48 },{ user: barney, age: 34 },{ user: fred, age: 40 },{ user: barney, age: 36 }
];// 分组排序
let agg _.chain(users)
.orderBy( [user, age], [asc, desc])
.value()
