Lightning Aura Components Developer Guide

What Is the Lightning Component Framework?
Quick Start
Creating Components
Using Components
Communicating with Events
Communicating Across the DOM with Lightning Message Service
Creating Apps
Styling Apps
Developing Secure Code
Using JavaScript
Working with Salesforce Data
Testing Components with Lightning Testing Service
Debugging
Performance
Reference
Component Library
System Tag Reference
JavaScript API
$A namespace
Action
AuraLocalizationService
UTCToWallTime()
WallTimeToUTC
displayDuration()
displayDurationInDays()
displayDurationInHours()
displayDurationInMilliseconds()
displayDurationInMinutes()
displayDurationInMonths()
displayDurationInSeconds()
duration()
endOf()
formatCurrency()
formatDate()
formatDateTime()
formatDateTimeUTC()
formatDateUTC()
formatNumber()
formatPercent()
formatTime()
formatTimeUTC()
getDateStringBasedOnTimezone
getDaysInDuration()
getDefaultCurrencyFormat()
getDefaultNumberFormat()
getDefaultPercentFormat()
getHoursInDuration()
getLocalizedDateTimeLabels()
getMillisecondsInDuration()
getMinutesInDuration()
getMonthsInDuration()
getNumberFormat()
getSecondsInDuration()
getToday
getYearsInDuration()
isAfter()
isBefore()
isBetween()
isPeriodTimeView()
isSame()
parseDateTime()
parseDateTimeISO8601()
parseDateTimeUTC()
startOf()
toISOString()
translateFromLocalizedDigits()
translateFromOtherCalendar()
translateToLocalizedDigits()
translateToOtherCalendar()
Component
Event
Util
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getYearsInDuration()

Returns the number of years in a duration.

Signature

getYearsInDuration(Duration duration)

Parameters

duration
Type: Duration
The duration object returned by $A.localizationService.duration.

Returns

Type: number
The number of years in the duration.

Sample Code