Class Scheduler

A zero dependency class schedule manager.

Installation

• Using npm

npm install class-scheduler

• Using yarn

yarn add class-scheduler

Quick Start

Importing

• TypeScript / JavaScript ES6+

  import { Schedule } from 'class-scheduler';
  

• Common JS

  const { Schedule } = require('class-scheduler');
  

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Usage

The calendar array

Create the calendar array in the following structure for each day in a week:

const calendar = [
  {
    day: 'Sunday',
    timeRange: [],
    classes: []
  },
  {
    day: 'Monday',
    timeRange: [
      { start: { hour: 12, minute: 30 }, end: { hour: 13, minute: 30 } },
      ...
    ],
    classes: ['Class 1', ...]
  }
  ...
];

The array must have a length of 7.

Initialize the Schedule object

const sch = new Schedule(calendar);

Get current class

const currentClass = sch.getCurrentClass();

Get upcoming classes

const nextClass = sch.getNextClass();
const laterClass = sch.getLaterClass();

---

Schema of the Calendar

Array<{
  day: 'Sunday' | 'Monday' | 'Tuesday' | 'Wednesday' | 'Thursday' | 'Friday' | 'Saturday';
  timeRange: Array<{
    start: {
      hour: number;
      minute: number;
    };
    end: {
      hour: number;
      minute: number;
    };
  }>;
  classes: Array<string>
}>;

See Quick Start Usage guide to get a grasp of the schema.

NOTE The package is not mature enough to check if the length of the timeRange[] comply with the length of classes[] or to check if the given time limit is valid or even the size of the entire array. Please make sure that you don't do anything wrong such things before reporting a bug.

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Custom messages

Scheduler offers several options to customize the messages shown during break times, when there are no classes, when the classes are yet to start or when the all classes have ended already.

You can do that in one of the following ways:

1. Pass it using the constructor options parameter

constructor(calendar: Calendar, options?: object)

The options object contains the following properties:

Property	Type	Default	Description
noScheduleMessage	string	'No Schedule'	No schedule for the time being, default when other messages are not provided
breakMessage	string	'Break'	Break in-between two classes
classesOverMessage	string	'Classes are over'	Classes are over for today
yetToBeginMessage	string	'Yet to begin'	Today's classes are yet to begin

2. Use methods to set specific messages

Method name	Parameter type	Description
setNoScheduleMessage	string	No schedule for the time being, default when other messages are not provided
setBreakMessage	string	Break in-between two classes
setClassesOverMessage	string	Classes are over for today
setYetToStartMessage	string	Today's classes are yet to begin

---

Methods

getClassTable

Arguments: None

Returns

All the classes of the week as array of array.

Type: Array<Array<string>>

---

getPeriodNumber

Get Period number corresponding to a given time.

Arguments

Name	Type	isMandatory	Default
time	Date	false	current time

Returns

The period number corresponding to the given time. 0 corresponds to 1st period of the day.

Type: number

Special values

Value	Meaning
-4	Break
-3	No classes today
-2	Classes have ended
-1	Classes are yet to start

---

getClasses

Get Classes of a given Date/ Day number. Day number 0 corresponds to Sunday.

Arguments

Name	Type	isMandatory	Default
date	Date / number	false	current date

Returns

An array of all the classes in the given day.

Type: Array<string>

---

getClass

Get the Class corresponding to a given period and day.

Arguments

Name	Type	isMandatory	Default
period	number	false	current period
date	Date / number	false	current date

Returns

The Class corresponding to a given period and day.

Type: string

Quick hint

() -> currentPeriod

(n) -> today's nth period

(n, d) -> Day d's nth period

---

getClassByDay

Get the Class schedule corresponding to given days.

Arguments

Name	Type	isMandatory	Default
date	... string	true	not set

Returns

An array of all the classes that matches the given days.

Type: Array<string>

Quick hint

For single day

getClassByDay('Monday')

For multiple days

getClassByDay('Monday' , 'Friday')

---

getCurrentClass

Get the class for current time.

Arguments [Options]

Name	Type	isMandatory	Default	Description
{useMeaningfulMessage}	boolean	false	false	Toggle usage of custom No schedule message

Returns

The current class.

Type: string

---

getNextClass

Get the next upcoming class.

Arguments [Options]

Name	Type	isMandatory	Default	Description
{allowNextDay}	boolean	false	false	Toggle next day look up

Returns

The next upcoming class.

Type: string

---

getLaterClass

Get the class coming after the next class.

Arguments [Options]

Name	Type	isMandatory	Default	Description
{allowNextDay}	boolean	false	false	Toggle next day look up

Returns

The class coming after the next class.

Type: string

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Authors

Krishna Moorthy

Santhosh

Pranav

Contributing

Refer the contributing guide here.

License

MIT License

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Maintained by