js中find和filter的区别

const element = arr.find(callback);

const newArray = arr.filter(callback);

const ages = [20, 25, 30, 35, 40];// 查找第一个年龄超过 30 的人const personOver30 = ages.find(age => age > 30); // 35// 过滤出所有年龄小于 30 的人const peopleUnder30 = ages.filter(age => age