call() apply() bind()

gistfile1.txt

'use strict';

const javascript = {
  language: 'js',
  title: 'JavaScript Crash Course',
  students: [],
  enrol(studentId, name) {
    this.students.push({
      course: this.language,
      id: studentId,
      name,
    });
  },
};

const react = {
  language: 'react',
  title: 'React Crash Course',
  students: [],
};

const enrol = javascript.enrol;