Record43

Constructors

emptyconstCreates a new, empty record.fromEntriesconstBuilds a record from an iterable of key-value pairs.fromIterableByconstCreates a new record from an iterable, utilizing the provided function to determine the key for each element.fromIterableWithconstTakes an iterable and a projection function and returns a record.singletonconstCreate a non-empty record from a single element.

Models

ReadonlyRecordtypeRepresents a readonly record with keys of type K and values of type A.

Guards

hasconstChecks whether a given key exists in a record.isEmptyReadonlyRecordconstDetermines if a readonly record is empty.isEmptyRecordconstDetermines if a mutable record is empty.

Getters

getconstRetrieves a value at a particular key from a record safely, returning it wrapped in an Option.keysconstRetrieves the keys of a given record as an array.sizeconstReturns the number of key/value pairs in a record.valuesconstRetrieves the values of a given record as an array.

Elements

findFirstconstReturns the first entry that satisfies the specified predicate, or None if no such entry exists.

Mapping

mapconstMaps a record into another record by applying a transformation function to each of its values.mapEntriesconstMaps entries of a ReadonlyRecord using the provided function, allowing modification of both keys and corresponding values.mapKeysconstMaps the keys of a ReadonlyRecord while preserving the corresponding values.

Filtering

filterconstSelects properties from a record whose values match the given predicate.filterMapconstTransforms a record by applying the function f to each key and value in the original record.getFailuresconstReturns a new record containing only the Err values from a record of Result values, preserving the original keys.getSomesconstReturns a new record containing only the Some values from a record of Option values, preserving the original keys.getSuccessesconstReturns a new record containing only the Ok values from a record of Result values, preserving the original keys.partitionconstApplies a function to each record entry and partitions the returned Result values into two records.separateconstPartitions a record of Result values into two separate records, one with the Err values and one with the Ok values.

Mutations

modifyconstApplies a function to the element at the specified key safely, creating a new record, or return Option.none() if the key doesn't exist.popconstRetrieves the value of the property with the given key from a record safely and returns an Option of a tuple with the value and the record with the removed property.removeconstRemoves a key from a record.replaceconstReplaces the value at an existing key safely and returns the updated record in Option.some.setconstAdds a new key-value pair or update an existing key's value in a record.

Combining

differenceconstMerges two records, preserving only the entries that are unique to each record.intersectionconstMerges two records, retaining only the entries that exist in both records.makeReducerIntersectionfunctionCreates a Reducer whose combine operation intersects two records and combines values for keys present in both records.makeReducerUnionfunctionCreates a Reducer for combining Records using union, with values for keys that exist in both records combined using the provided Combiner.unionconstMerges two records, preserving entries that exist in either of the records.

Converting

collectconstTransforms the values of a record into an Array with a custom mapping function.toEntriesconstTakes a record and returns an array of tuples containing its keys and values.

Folding

reduceconstReduces a record to a single value by combining its entries with a specified function.

Instances

makeEquivalenceconstCreate an Equivalence for records using the provided Equivalence for values.

Predicates

everyconstChecks whether all entries in a record meet a specific condition.isSubrecordconstChecks whether the first record is a subrecord of the second record.isSubrecordByconstChecks whether all the keys and values in one record are also found in another record.someconstChecks whether any entry in a record meets a specific condition.

Type Lambdas

ReadonlyRecordTypeLambdainterfaceType lambda for readonly records, used in higher-kinded type operations.