javascript - 如何在类里面调用它，例如 forEach？-6ren

javascript - 如何在类里面调用它，例如 forEach？

转载作者：搜寻专家更新时间：2023-10-31 23:58:45

<分区>

我精通 Node.js 和 JavaScript。我有示例类:

class Student {
    constructor(name, age) {
        this.name = name;
        this.age = age;
    }
    getStudentName() {
        return this.name;
    }
    getStudentAge() {
        return this.age;
    }
    exampleFunction() {
        let array = ['aaa', 'bbb', 'ccc', 'ddd'];
        array.forEach(function(i, val) {
            console.log(i, val);
            console.log(this.getStudentName()); // ERROR!
        })
    }
}

var student = new Student("Joe", 20, 1);
console.log(student.getStudentName());
student.exampleFunction();