JavaScript 累加 reduce 计算全部年龄

Posted 2022-02-14 安果移不动

const inventors = [first: "Albert", last: "Einstein", year: 1879, passed: 1955, 
    first: "Isaac", last: "NewTon", year: 1643, passed: 1727
, first: "Galileo", last: "Galilei", year: 1564, passed: 1642, 
    first: "Marie", last: "Curie", year: 1847, passed: 1934
, first: "Johannes", last: "Lepler", year: 1571, passed: 1630, 
    first: "Nicolaus", last: "Copermocis", year: 1473, passed: 1543
, first: "Max", last: "Planck", year: 1858, passed: 1947,]
console.log("计算全部年龄")
const totalYears = inventors.reduce((total, inventor) => 
    return total + (inventor.passed - inventor.year);
, 0)
console.log(totalYears);