Contents

function clone(obj) {
  return JSON.parse(JSON.stringify(obj));
}

let db;
class School {

  constructor() {
    db = {};
  }

  add(student, level) {
    db[level] = this.grade(level).concat(student).sort();
  }

  grade(level) {
    return db[level] ? clone(db[level]).sort() : [];
  }

  roster() {
    return clone(db);
  }

}

export default School;

Version data entries

396 entries across 396 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.179	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.178	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.177	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.176	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.175	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.174	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.173	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.172	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.171	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.170	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.169	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.167	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.166	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.165	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.164	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.163	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.162	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.161	tracks/ecmascript/exercises/grade-school/example.js
trackler-2.2.1.160	tracks/ecmascript/exercises/grade-school/example.js