how to write several variables into an array?

Question

I want to write several variables into an array for one call to the "addLetter" method, "push" and "concat" does not work

function Team(name) {
    this.name = name;
    this.letters = [];
}
Team.prototype.addLetter = function (letter) {
    this.letters.push(letter).join('\n');
};
Team.prototype.toString = function () {
    return "Name of team - " + this.name +  '\n' +"ltters : " + this.letters;
};
var a = 's';
b='g';
v='d';
var team1 =  new Team('letters');
team1.addLetter(a,b,v);
console.log(team1.toString());

Well, you never defined addMember, so that's causing an error. — CertainPerformance
– CertainPerformance, Commented May 27, 2018 at 20:32
Also your toString-function tries to log members instead of letters. — Nikolaus
– Nikolaus, Commented May 27, 2018 at 20:38
Array.prototype.push returns an integer rather than an array. — Ele
– Ele, Commented May 27, 2018 at 20:40

Máté Safranka · Accepted Answer · 2018-05-27 20:42:46Z

1

If you're using ES6:

Team.prototype.addLetter = function() {
    this.letters.push(...arguments);
};

With older syntax:

Team.prototype.addLetter = function() {
    this.letters.push.apply(this.letters.push, arguments);
};

JavaScript allows any number of arguments to be passed to any function. All of these arguments are accessible via the arguments variable within the function, which is an array-like object, containing all arguments in the order they were passed.

answered May 27, 2018 at 20:42

Máté Safranka

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