Support package with helper functions for date-fns
upgrade from 1.x
to 2.x
Codemod that will help you apply these helpers automatically located here - date-fns-upgrade-codemod.
npm install @date-fns/upgrade --save
# or with yarn
yarn add @date-fns/upgrade
convertTokens
is a helper function used for 2nd argument of format
function
to convert date tokens like YYYY
to new format.
See this post
for more details.
+import { convertTokens } from '@date-fns/upgrade/v2'
const formattedDate = format(
new Date(),
- 'YYYY',
+ convertTokens('YYYY'),
)
date-fns@2.x
functions don't accept string as arguments any more (see CHANGELOG), legacyParse
is used to simplify that transition, it uses algorithm from 1.x
to do that. See this post for details on "why" this was done.
+import { legacyParse } from '@date-fns/upgrade/v2'
const formattedDate = format(
- '2014',
+ legacyParse('2014'),
'YYYY',
)
legacyParseMap
is used same as legacyParse
but for arguments that accept arrays.
+import { legacyParseMap } from '@date-fns/upgrade/v2'
var dateToCompare = new Date(2015, 8, 6)
var datesArray = [
'2014-01-01',
'2015-01-01'
]
-var result = closestIndexTo(dateToCompare, datesArray)
+var result = closestIndexTo(dateToCompare, legacyParseMap(datesArray))