This JavaScript code introduces two classes: User and ChatUser. The User class is a basic representation of a user with a username. It provides methods to get and set the username. The ChatUser class extends the User class, adding functionality specific to a chat context, such as handling warnings.
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The User class has a constructor that takes a username as an argument and assigns it to the 'name' property. It also has 'getUsername' and 'setUsername' methods for accessing and modifying the username. The ChatUser class extends User, inheriting its properties and methods. It has its own constructor, which calls the parent constructor with 'super' and initializes a 'count' property to zero. This count represents the number of warnings a chat user has received. The 'giveWarning' method increments this count, and 'getWarningCount' returns the current count.
class User {
constructor(username) {
this.name = username;
}
getUsername () {
return this.name;
}
setUsername(username) {
this.name = username;
}
}
class ChatUser extends User {
constructor(userName) {
super(userName);
this.count = 0;
}
giveWarning() {
let count = this.count + 1;
this.count = count;
}
getWarningCount() {
return this.count;
}
}
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