interface Table.Builder<R,C,V>

A mutable Table builder used to efficiently create new immutable instances. See the Table documentation and the Table.Builder API documentation

Extends: TableBase.Builder<R,C,V,Tp>

Type parameters

Name	Description
R	the row key type
C	the column key type
V	the value type

Properties

amountRows

Returns the amount of rows in the builder.

Definition

readonly amountRows: number;

example

HashTableHashColumn.of([1, 2, 3], [1, 4, 5], [2, 3, 5])
.toBuilder()
.amountRows
// => 2

Overrides

Builder.amountRows

isEmpty

Returns true if there are no entries in the builder.

Definition

readonly isEmpty: boolean;

example

HashTableHashColumn.of([1, 2, 3], [1, 4, 5], [2, 3, 5])
.toBuilder()
.isEmpty
// => false

Overrides

Builder.isEmpty

size

Returns the amount of entries in the builder.

Definition

readonly size: number;

example

HashTableHashColumn.of([1, 2, 3], [1, 4, 5], [2, 3, 5])
.toBuilder()
.size
// => 3

Overrides

Builder.size

Methods

addEntries

Adds the given entries to the builder.

Definition

addEntries(entries: StreamSource<readonly [R, C, V]>): boolean;

Parameters

Name	Type	Description
entries	StreamSource<readonly [R, C, V]>

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5]).toBuilder()
t.addEntries([[1, 2, 3], [1, 2, 3]])  // => false
t.addEntries([[1, 2, 3], [2, 3, 4]])  // => true

Overrides

Builder.addEntries

addEntry

Adds the given entry to the builder.

Definition

addEntry(entry: readonly [R, C, V]): boolean;

Parameters

Name	Type	Description
entry	readonly [R, C, V]

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5]).toBuilder()
t.addEntry([1, 2, 3])   // => false
t.addEntry([1, 3, 8])   // => true

Overrides

Builder.addEntry

build

Returns an immutable collection instance containing the entries in this builder.

Definition

build(): WithRow<Tp, R, C, V>['normal'];

example

const m = HashTableHashColumn.of([1, 2, 3], [1, 4, 5]).toBuilder()
const m2: HashTableHashColumn<number, number, number> = m.build()

Overrides

Builder.build

buildMapValues

Returns an immutable collection instance containing the entries in this builder.

Definition

buildMapValues<V2>(mapFun: (value: V, row: R, column: C) => V2): (Tp & Row<R, C, V2>)['normal'];

Type parameters

Name	Description
V2

Parameters

Name	Type	Description
mapFun	(value: V, row: R, column: C) => V2	a function receiving the value, row and column, and returning a new value

example

const m = HashTableHashColumn.of([1, 2, 3], [1, 4, 5]).toBuilder()
const m2: HashTableHashColumn<number, number, boolean> = m.buildMapValues(v => v > 3)

Overrides

Builder.buildMapValues

forEach

Performs given function f for each entry of the collection, using given state as initial traversal state.

Definition

forEach(f: (entry: [R, C, V], index: number, halt: () => void) => void, options?: {
      state?: TraverseState;
    }): void;

Parameters

Name	Type	Description
f	(entry: [R, C, V], index: number, halt: () => void) => void	the function to perform for each entry, receiving: - entry: the next tuple of a row key, column key, and value - index: the index of the element - halt: a function that, if called, ensures that no new elements are passed
options	{       state?: TraverseState;     }	object containing the following - state: (optional) the traverse state

example

HashTableHashColumn.of([1, 2, 3], [1, 4, 5], [2, 3, 5])
.toBuilder()
.forEach((entry, i, halt) => {
console.log([entry]);
if (i >= 1) halt();
})
// => logs [1, 2, 3]  [1, 4, 5]

note

O(N)

Overrides

Builder.forEach

get

Returns the value at given row and column keys, or the otherwise value if no value is present.

Definitions

get<UR = R, UC = C>(row: RelatedTo<R, UR>, column: RelatedTo<C, UC>): V | undefined;

get<UR, UC, O>(row: RelatedTo<R, UR>, column: RelatedTo<C, UC>, otherwise: OptLazy<O>): V | O;

Type parameters

Name	Default	Description
UR	R
UC	C

Parameters

Name	Type	Description
row	RelatedTo<R, UR>	the row key
column	RelatedTo<C, UC>	the column key

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5]).toBuilder()
t.get(10, 1)     // => undefined
t.get(10, 1, 0)  // => 0
t.get(1, 2)      // => 3
t.get(1, 2, 0)   // => 3

Overrides

Builder.get

getRow

Returns a map containing the column keys and values in the given row.

Definition

getRow<UR = R>(row: RelatedTo<R, UR>): WithRow<Tp, R, C, V>['row'];

Type parameters

Name	Default	Description
UR	R

Parameters

Name	Type	Description
row	RelatedTo<R, UR>	the row key

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5]).toBuilder()
t.getRow(10).toArray()    // => []
t.getRow(1).toArray()     // => [[2, 3], [4, 5]]

Overrides

Builder.getRow

hasRowKey

Returns true if given row key is in the builder.

Definition

hasRowKey<UR = R>(row: RelatedTo<R, UR>): boolean;

Type parameters

Name	Default	Description
UR	R

Parameters

Name	Type	Description
row	RelatedTo<R, UR>	the row key to look for

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5]).toBuilder()
t.hasRowKey(10)    // => false
t.hasRowKey(1)     // => true

Overrides

Builder.hasRowKey

hasValueAt

Returns true if the builder has a value for given row and column keys.

Definition

hasValueAt<UR = R, UC = C>(row: RelatedTo<R, UR>, column: RelatedTo<C, UC>): boolean;

Type parameters

Name	Default	Description
UR	R
UC	C

Parameters

Name	Type	Description
row	RelatedTo<R, UR>	the row key
column	RelatedTo<C, UC>	the column key

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5]).toBuilder()
t.hasValueAt(10, 1)    // => false
t.hasValueAt(1, 4)     // => true

Overrides

Builder.hasValueAt

modifyAt

Modifies the value at given row and column keys according to given options.

Definition

modifyAt(row: R, column: C, options: {
      ifNew?: OptLazyOr<V, Token>;
      ifExists?: (currentValue: V, remove: Token) => V |Token| V;
    }): boolean;

Parameters

Name	Type	Description
row	R	the row key
column	C	the column key
options	{       ifNew?: OptLazyOr<V, Token>;       ifExists?: (currentValue: V, remove: Token) => V |Token| V;     }

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5]).toBuilder()
t.modifyAt(2, 5, { ifNew: 8 })
// => true
t.modifyAt(2, 6, { ifNew: (none) => 1 < 2 ? none : 8 })
// => false
t.modifyAt(1, 2, { ifExists: (v) => v * 2 })
// => true
t.modifyAt(1, 2, { ifExists: (v, remove) => remove })
// => true

Overrides

Builder.modifyAt

remove

Remove the value at given row and column keys in the builder.

Definitions

remove<UR = R, UC = C>(row: RelatedTo<R, UR>, column: RelatedTo<C, UC>): V | undefined;

remove<UR, UC, O>(row: RelatedTo<R, UR>, column: RelatedTo<C, UC>, otherwise: OptLazy<O>): V | O;

Type parameters

Name	Default	Description
UR	R
UC	C

Parameters

Name	Type	Description
row	RelatedTo<R, UR>	the row key
column	RelatedTo<C, UC>	the column key

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5]).toBuilder()
t.remove(5, 6)        // => undefined
t.remove(5, 6, 'a')   // => 'a'
t.remove(1, 2)        // => 3
t.remove(1, 4, 'a')   // => 5

Overrides

Builder.remove

removeEntries

Removes all given entries from the builder.

Definition

removeEntries<UR = R, UC = C>(entries: StreamSource<[RelatedTo<R, UR>, RelatedTo<C, UC>]>): boolean;

Type parameters

Name	Default	Description
UR	R
UC	C

Parameters

Name	Type	Description
entries	StreamSource<[RelatedTo<R, UR>, RelatedTo<C, UC>]>

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5], [2, 3, 5]).toBuilder()
t.removeEntries([[7, 8, 9], [9, 8, 7]])  // => false
t.removeEntries([[7, 8, 9], [1, 2, 3]])  // => true

Overrides

Builder.removeEntries

removeRow

Removes all values in the given row from the builder.

Definition

removeRow<UR = R>(row: RelatedTo<R, UR>): boolean;

Type parameters

Name	Default	Description
UR	R

Parameters

Name	Type	Description
row	RelatedTo<R, UR>

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5], [2, 3, 5]).toBuilder()
t.removeRow(5)   // => false
t.removeRow(1)   // => true

Overrides

Builder.removeRow

removeRows

Removes all given rows from the builder.

Definition

removeRows<UR = R>(rows: StreamSource<RelatedTo<R, UR>>): boolean;

Type parameters

Name	Default	Description
UR	R

Parameters

Name	Type	Description
rows	StreamSource<RelatedTo<R, UR>>

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5], [2, 3, 5]).toBuilder()
t.removeRows([10, 11])  // => false
t.removeRows([1, 10])   // => true

Overrides

Builder.removeRows

set

Sets the given value for the given row and column keys in the builder.

Definition

set(row: R, column: C, value: V): boolean;

Parameters

Name	Type	Description
row	R	the row key
column	C	the column key
value	V

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5]).toBuilder()
t.set(1, 2, 3)   // => false
t.set(1, 3, 8)   // => true

Overrides

Builder.set

updateAt

Updates the value at given row and column keys according to the given update function.

Definitions

updateAt(row: R, column: C, update: Update<V>): V | undefined;

updateAt<O>(row: R, column: C, update: Update<V>, otherwise: OptLazy<O>): V | O;

Parameters

Name	Type	Description
row	R	the row key
column	C	the column key
update	Update<V>	a function taking the current value and returning a new value

example

const t = HashTableHashColumn.of([1, 2, 3], [1, 4, 5])
t.updateAt(3, 4, v => v * 2)        // => undefined
t.updateAt(3, 4, v => v * 2, 'a')   // => 'a'
t.updateAt(1, 2, v => v * 2)        // => true
t.updateAt(1, 2, v => v * 2, 'a')   // => true

Overrides

Builder.updateAt