What is it called?

Question

JavaScript

I solve elementary (not for me) problems on codewars, and I didn’t understand the moment:

function Sleigh() {
  this.name = "Santa Claus";
  this.password = "Ho Ho Ho!";
}

Sleigh.prototype.authenticate = function(name, password) {
  return this.name == name && this.password == password;
};

What is Sleigh. prototype.authenticate and why this
ps construct in the task needs to return true if both match, and false if they don't match

Answer 1

Seems like one of the OOP options for JS =)
prototype says that all instances of the class *** will have such a property / method

Answer 2

function Охранник() {
  this.name = "Штирлиц";
  this.password = "У вас продается славянский шкаф?";
}

Охранник.prototype.проверяй = function(name, password) {
  return this.name == name && this.password == password;
};

let Василий = new Охранник()
Василий.проверяй('Штирлиц', 'У вас продается славянский шкаф?')

PS: maybe you should buy a dictionary?

Answer 3

All objects created by the Sleight constructor will have an authenticate method (function).
Here is such a strange JS-OOP. By the way, normal syntactic sugar is added to es6 to forget about prototype inheritance.