compose

Without Compose

const students = [{
    name: '张三',
    score: 73,
    sex: 'male',
}, {
    name: '刘丽',
    score: 62,
    sex: 'female'
}, {
    name: '李四',
    score: 93,
    sex: 'male'
}, {
    name: '王五',
    score: 100,
    sex: 'male'
}];

const isExcellent = student => student.score > 80;

const excellentStudentNames = students =>
    students.filter(isExcellent).map(excellent => excellent.name);

console.log(excellentStudentNames(students)); // =>

With Compose

const F = require('../fp');

const students = [{
    name: '张三',
    score: 73,
    sex: 'male',
}, {
    name: '刘丽',
    score: 62,
    sex: 'female'
}, {
    name: '李四',
    score: 93,
    sex: 'male'
}, {
    name: '王五',
    score: 100,
    sex: 'male'
}];


const isExcellent = (student) => student.score > 80;

const excellentStudentNames = F.compose(
    F.map(F.property('name')),
    F.filter(isExcellent)
);

console.log(excellentStudentNames(students)); // => ['李四', '王五']