如何让 addStudent 方法正常工作？

Question

I have been up all night trying to find out what I am doing wrong. I have an Object 'studentScores' and a method addStudent, I get errors and if I don't get errors it just consoles the entire function. Here is my code-

let studentScores = {
studentOne: {
    fName: 'Joey',
    lName: 'Hendricks',
    score: 100
},
studentTwo: {
    fName: 'Tim',
    lName: 'Izer',
    score: 98
},
studentThree: {
    fName: 'Amy',
    lName: 'Krueger',
    score: 69
},
addStudent: function(stuNum, name1, name2, stuScore){
    // this.stuNum.push({
    //  stuNum:,
    //  fName: name1,
    //  lName: name2,
    //  score: stuScore
    // });

    return this.stuNum = {fName: name1, lName: name2, score: stuScore};
}
};

When I do it like this-

console.log(studentScores.studentFour = {fName: 'Jimi', lName: 'Hendrix', score: 98});

It works perfectly. Can someone lead me in right direction to what I'm doing wrong? I thank you so very much. Thank you.

Answer 1

If key of object is variable you should use [] instead of dot.

 let studentScores = { studentOne: { fName: 'Joey', lName: 'Hendricks', score: 100 }, studentTwo: { fName: 'Tim', lName: 'Izer', score: 98 }, studentThree: { fName: 'Amy', lName: 'Krueger', score: 69 }, addStudent(stuNum, name1, name2, stuScore) { return (this[stuNum] = { fName: name1, lName: name2, score: stuScore }) } } studentScores.addStudent('studentFour', 'Jimi', 'Hendrix', 98) console.log(studentScores)