simple-time-input-engine

Engine for implementing a time input field that accepts flexible inputs. It has support for 12 and 24 hours formats.

Installation

npm install simple-time-input-engine --save

API

parseInputChange

Receives an input (newValue), a previous input (previousTime) and a clockMode, and outputs a time string in 24-hour format.

import { parseInputChange } from 'simple-time-input-engine'
 
const { valid, time } = parseInputChange({ newValue: '6am', previousTime: '10:00', clockMode: 12 })
 
console.log(valid) // true
console.log(time)  // "06:00"

• The input (newValue) is flexible, you can pass different strings such as 06:00, 6:30, 630, 630a, 630p, 6a, 6p, 6, etc. If you pass an empty string, the result will be an empty string.
• The previous input (previousTime) must be in 24-hour format, or an empty string.
• If a non-supported time input is passed, it'll return an object { "valid": false } with no time key.
• clockMode is used for activating inference of the period of day based on the previous value. So if you pass 630 and the previous time is 13:00 (1pm), the new value will be 18:30 (6:30pm). If the previous time is 01:00 (1am), it will infer the new time as 06:30 (6:30am).
• This library assumes your implementation of the input field stores the time internally in 24-hour format, so parseInputChange will always return in 24-hour despite the clockMode passed. clockMode is only used for activating the period inference described above.

formatTimeForDisplay

Transforms the input time in 24-hour format to an output in 12 or 24-hour format, based on the clockMode passed.

import { formatTimeForDisplay } from 'simple-time-input-engine'
 
console.log(formatTimeForDisplay({ time: '', clockMode })) // ""
 
console.log(formatTimeForDisplay({ time: '05:00', clockMode: 12 })) // "5:00am"
console.log(formatTimeForDisplay({ time: '17:00', clockMode: 12 })) // "5:00pm"
 
console.log(formatTimeForDisplay({ time: '05:00', clockMode: 24 })) // "05:00"
console.log(formatTimeForDisplay({ time: '17:00', clockMode: 24 })) // "17:00"

Implementations

• React Simple Time Input