import { option } from "https://deno.land/x/fun@v.2.0.0-alpha.11/mod.ts";
const { isNone } = option;
Tests wether an Option is None, returning true if the passed option is None and false if it is Some.
Module
A collection of algebraic data types, lenses, and schemables based on a light weight higher kinded type implementation. Written for deno.
benchmarksexamplesscriptsaltapplicativeapplyarrayasyncasync_eitherasync_iterablebifunctorbooleancategorychainconstcontravariantdecodereithereqfilterablefnfn_eitherfoldablefreefunctorgroupidentityiterablejson_schemamapnewtypenilablenumberopticsoptionpairpredicateprofunctorpromiserefinementschemablesemigroupsetshowstatestringsyncsync_eitherthesetraversabletreeKindArrayAnyArrayNonEmptyArrayTypeOfAltArrayApplicativeArrayApplyArrayChainArrayFilterableArrayFoldableArrayFunctorArrayMonadArrayTraversableArray_unsafeAppend_unsafeDeleteAt_unsafeInsertAt_unsafeJoin_unsafePrepend_unsafePush_unsafeUpdateAtaltapappendarraybinarySearchchainconcatdeleteAtemptyfilterfilterMapgetEqgetMonoidgetOrdgetSemigroupgetShowinsertinsertAtisEmptyisNonEmptyisOutOfBoundsjoinlookupmapmodifymodifyAtoforderedInsertpartitionpartitionMapprependrangereducesequencesorttraverseupdateupdateAtzipKindAsyncEitherAsyncEitherAltAsyncEitherBifunctorAsyncEitherMonadAsyncEitherParallelMonadAsyncEitherSequentialaltapParallelapSequentialbimapchainchainFirstchainLeftfromAsyncfromEitherjoinleftmapmapLeftmatchofrightthrowErrortryCatchKindAsyncIterableFilterableAsyncIterableMonadAsyncIterableapchainclonedelayfilterfilterMapforEachfromIterablejoinmakemapofpartitionpartitionMapreducerepeatscantaketakeUntiltakeWhiletapKindAsyncAsyncMonadAsyncParallelMonadAsyncSequentialapParallelapSequentialchaindelayfromSyncjoinmapoftryCatchconstFalseconstTrueEqBooleanMonoidBooleanAllMonoidBooleanAnyOrdBooleanSemigroupBooleanAllSemigroupBooleanAnyShowBooleanandcompareequalsisBooleanmatchnotorKindConstKindRightConstConstBifunctorConstContravariantConstFunctorConstgetApplicativegetApplygetEqgetMonoidgetOrdgetSemigroupgetShowbimapcontramapmakemapmapLeftKindDatumDatumInitialLoadingNonePendingRefreshRepleteSomeAltDatuminitialMonadDatumpendingTraversableDatumaltapchainconstInitialconstPendingfromNullablegetEqgetMonoidgetOrdgetOrElsegetSemigroupgetShowisInitialisLoadingisNoneisPendingisRefreshisRepleteisSomejoinmapmatchofreducerefreshrepletethrowErrortoLoadingtraversetryCatchKindDecodedKindDecoderKindUnknownDecoderAnyDecoderDecodedDecodeErrorDecoderIndexIntersectionKeyLeafManyPropertyUnionWrap_null_undefinedAltDecoderApplicativeDecoderApplyDecoderbooleanChainDecoderFunctorDecoderMonadDecodedMonadDecoderMonoidDecodeErrornumberoptionalrequiredSchemableDecoderSemigroupDecodeErrorstringunknownaltannotateaparrayarrayNchaincomposeconcatcontramapdatedimapdrawemptyextractfailurefromDecodeErrorfromPredicateidindexErrintersectintersectionErrisIndexisIntersectionisKeyisLeafisManyisUnionisWrapjoinjsonkeyErrlazyleafErrliteralmanyErrmapmatchnullableofpartialrecordrefinestructsuccesstupleundefinableunionunionErrwrapErrKindEitherKindRightEitherEitherLeftRightAltEitherBifunctorEitherExtendEitherMonadEitherTraversableEitheraltapbimapchainchainLeftextendfromNullablefromPredicategetEqgetLeftgetLeftSemigroupgetOrdgetOrElsegetRightgetRightMonadgetRightMonoidgetRightSemigroupgetShowisLeftisRightjoinleftmapmapLeftmatchofreducerightstringifyJSONswapthrowErrortraversetryCatchtryCatchWrapEqKindContraEqKindEqbooleanContravariantEqnumberSchemableEqstringunknownarraycontramapfromEqualsintersectiolazyliteralmethodnullablepartialreadonlyrecordstructtupleundefinableunionKindFnEitherKindRightFnEitherAnyFnEitherFnEitherAltFnEitherBifunctorFnEitherCategoryFnEitherContravariantFnEitherMonadFnEitherProfunctorFnEitheraltapbimapchainchainLeftcomposecontramapdimapfromEitherfromFnfromPredicategetRightMonadididLeftjoinleftmapmapLeftofrighttryCatchKindFnAnyFnFnApplicativeFnApplyFnCategoryFnChainFnContravariantFnFunctorFnMonadFnProfunctorFnapapplychaincomposeconstantcontramapdimapflowhandleThrowididentityjoinmapmemoizeofoverpipetodotryThunkunaryunsafeCoerceKindJsonBuilderJsonBuilderJsonSchemaJsonSchemaAllOfJsonSchemaAnyOfJsonSchemaArrayJsonSchemaBooleanJsonSchemaDateJsonSchemaDefinitionsJsonSchemaEnumJsonSchemaNullJsonSchemaNumberJsonSchemaObjectJsonSchemaOneOfJsonSchemaRefJsonSchemaStringJsonSchemaUnknownTypeOfapchainjoinmapMonadJsonBuilderofSchemableJsonBuildersequenceArraysequenceRecordarraybooleandateintersectlazyliteralnullablenumberpartialprintrecordstringstructtupleundefinableunionunknownKindReadonlyMapBifunctorMapFunctorMapbimapcollectdeleteAtelememptyentriesgetEqgetMonoidgetShowinsertinsertAtisEmptyisSubmapkeyslookuplookupWithKeymapmapLeftmembermodifymodifyAtpopreducesingletonsizeupdateupdateAtvaluesKindNilableNilNilableAltNilableMonadNilablenilaltapchainconstNilfromPredicategetOrElsegetShowisNilisNotNiljoinmakemapmatchofthrowErrortoNulltoUndefinedtryCatchEqNumberMonoidNumberMaxMonoidNumberMinMonoidNumberProductMonoidNumberSumOrdNumberSemigroupNumberMaxSemigroupNumberMinSemigroupNumberProductSemigroupNumberSumShowNumberaddcomparedividesemptyNegInfemptyOneemptyPosInfemptyZeroequalsltemodmultiplyModifierOpticReviewerViewerAffineFoldAffineTagFoldFoldTagIsoLensLensTagPrismRefoldTagarrayfirstleftnilablerecordrightsecondsetsometree_unsafeCastaffineFoldapatKeyatMapcomposecomposeReviewerconcatAllfilterfoldfromPredicateidimapindexisokeylensmapmodifiermodifyofopticprismproppropsrefoldreplacereviewreviewertraverseviewviewerKindOptionNoneOptionSomeAltOptionApplicativeOptionApplyOptionChainOptionExtendsOptionFilterableOptionFoldableOptionFunctorOptionMonadOptionnoneTraversableOptionaltapchainconstNoneemptyexistsextendfilterfilterMapfromNullablefromPredicategetEqgetMonoidgetOrdgetOrElsegetSemigroupgetShowisNoneisSomejoinmapmapNullablematchofpartitionpartitionMapreducesometoNulltoUndefinedtraversetryCatchKindOrdOrdCompareOrderingContravariantOrdbetweenclampcontramapfromComparegtgteltltemaxminreversesignstructtrivialtupleKindPairKindRightPairPairBifunctorPairComonadPairExtendPairFoldablePairFunctorPairTraversablePairbimapdupextendextractfirstgetFirstgetRightMonadgetSecondgetShowmapmapLeftmergemergeSecondpairreducesecondswaptraverseKindPredicatePredicateContravariantPredicateandcontramapgetMonoidAllgetMonoidAnygetSemigroupAllgetSemigroupAnynotorKindPromiseAnyPromiseDeferredTypeOfApplicativePromiseApplyPromiseChainPromiseFunctorPromiseMonadPromiseabortableallapcatchErrorchaindeferreddelayjoinmapofracerejectresolvethentryCatchwaitKindReadonlyRecordNonEmptyRecordReadonlyRecordTypeOfFilterableRecordFoldableRecordFunctorRecordTraversableRecordcollapsecollectdeleteAtdeleteAtWithValueentriesfilterfilterMapgetShowinsertinsertAtisSubrecordkeyslookupAtlookupWithKeymapmodifymodifyAtomitpartitionpartitionMappickreducesequencetraverseupdateupdateAtKindRefinementKindUnknownRefinementAnyRefinementRefinementToInToOutSchemableRefinementandarraybooleancomposefromEitherfromOptionidintersectisArrayisArrayNisRecordlazyliteralnullablenumberorpartialrecordstringstructtupleundefinableunionunknownArraySchemableBooleanSchemableIntersectSchemableLazySchemableLiteralLiteralSchemableNullableSchemableNumberSchemablePartialSchemableRecordSchemableSchemaSchemableSpreadStringSchemableStructSchemableTupleSchemableTypeOfUndefinableSchemableUnionSchemableUnknownSchemableschemaSemigroupAnySemigroupTypeOfconcatAllconstantdualfirstintercalcatelastmaxminstructtupleKindReadonlySetTypeOfApplicativeSetApplySetChainSetFilterableSetFoldableSetFunctorSetMonadSetTraversableSetapchaincompactcopyelemelemOfemptyeveryfilterfilterMapgetEqgetShowgetUnionMonoidintersectionisSubsetjoinmapofpartitionpartitionMapreducesetsometraverseunionEqStringMonoidStringOrdStringSemigroupStringShowStringcompareconcatemptyendsWithequalsincludesisEmptyisStringlengthmatchpluralreplaceslicesplitstartsWithtesttoLowerCasetoUpperCasetrimtrimEndtrimStartKindSyncEitherSyncEitherAltSyncEitherBifunctorSyncEitherExtendsSyncEitherFoldableSyncEitherMonadSyncEitheraltapbimapchainchainLeftextendfromEitherfromSyncjoinleftmapmapLeftofreducerightthrowErrortryCatchKindSyncSyncExtendsSyncMonadSyncTraversableSyncapchainextendjoinmapofreducetraverse
mod.ts (default module)
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array.ts
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async_either.ts
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async_iterable.ts
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async.ts
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boolean.ts
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const.ts
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datum.ts
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decoder.ts
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either.ts
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eq.ts
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fn_either.ts
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fn.ts
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json_schema.ts
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map.ts
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nilable.ts
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number.ts
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optics.ts
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option.ts
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ord.ts
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pair.ts
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predicate.ts
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promise.ts
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record.ts
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refinement.ts
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schemable.ts
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semigroup.ts
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set.ts
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string.ts
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sync_either.ts
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sync.ts
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