首页 > 代码库 > [Ramda] Filter, Reject and Partition
[Ramda] Filter, Reject and Partition
We‘ll learn how to get a subset of an array by specifying items to include with filter, or items to exclude using reject. We‘ll also look at how to get the results from both filter and reject, neatly separated with partition.
// we don‘t need to require in Plunker!//const R = require(‘ramda‘)const pets = [ {name: ‘Spike‘, type: ‘dog‘}, {name: ‘Mittens‘, type: ‘cat‘}, {name: ‘Rover‘, type: ‘dog‘}, {name: ‘Fluffy‘, type: ‘cat‘}, {name: ‘Fido‘, type: ‘dog‘}]const dogCheck = pet => pet.type == ‘dog‘// const result = R.filter(dogCheck, pets)// const result = R.reject(dogCheck, pets)const result = R.partition(dogCheck, pets)console.log(result)document.getElementById(‘output‘).innerHTML = `${JSON.stringify(result)}`
/*[
[{"name":"Spike","type":"dog"},{"name":"Rover","type":"dog"},
{"name":"Fido","type":"dog"}],
[{"name":"Mittens","type":"cat"},{"name":"Fluffy","type":"cat"}]
]*/
[Ramda] Filter, Reject and Partition
声明：以上内容来自用户投稿及互联网公开渠道收集整理发布，本网站不拥有所有权，未作人工编辑处理，也不承担相关法律责任，若内容有误或涉及侵权可进行投诉： 投诉/举报 工作人员会在5个工作日内联系你，一经查实，本站将立刻删除涉嫌侵权内容。