Class: Some<T>

Type parameters

Name
`T`

Implements

IOption<T>

Constructors

constructor

• new Some<T>(value)

Type parameters

Name
`T`

Parameters

Name	Type
`value`	`T`

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:12

Properties

value

• Private Readonly value: T

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:10

Methods

[iterator]

▸ [iterator](): Generator<T, any, unknown>

Returns an iterator over the possibly contained value.

The iterator yields one value if the result is Some, otherwise none.

Example

const x = some(7);
for (const value of x) {
  console.log(value);
}
// Logs 7

Example

const x = none;
for (const value of x) {
  console.log(value);
}
// Doesn't log

See

Returns

Generator<T, any, unknown>

Implementation of

IOption.[iterator]

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:181

and

▸ and<R>(option): R

Returns None if the option is None, otherwise returns option.

Example

const x: Option<number> = some(2);
const y: Option<string> = none;
assert.equal(x.and(y), none);

Example

const x: Option<number> = none;
const y: Option<string> = some('foo');
assert.equal(x.and(y), none);

Example

const x: Option<number> = some(2);
const y: Option<string> = some('foo');
assert.equal(x.and(y), some('foo'));

Example

const x: Option<number> = none;
const y: Option<string> = none;
assert.equal(x.and(y), none);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.and

Type parameters

Name	Type
`R`	extends `Option`<`any`>

Parameters

Name	Type	Description
`option`	`R`	The option.

Returns

R

Implementation of

IOption.and

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:92

andThen

▸ andThen<R>(cb): R

Calls cb if the result is Ok, otherwise returns the Err value of self.

This function can be used for control flow based on Result values.

Example

function fractionOf4(value: number) {
  return value === 0 ? none : some(4 / value);
}

assert.equal(some(2).andThen(fractionOf4), some(4));
assert.equal(some(0).andThen(fractionOf4), none);
assert.equal(none.andThen(fractionOf4), none);

See

https://doc.rust-lang.org/std/result/enum.Result.html#method.and_then

Type parameters

Name	Type
`R`	extends `Option`<`any`>

Parameters

Name	Type	Description
`cb`	(`value`: `T`) => `R`	The predicate.

Returns

R

Implementation of

IOption.andThen

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:96

contains

▸ contains(value): boolean

Returns true if the option is a Some value containing the given value.

Example

const x: Option<number> = some(2);
assert.equal(x.contains(2), true);

Example

const x: Option<number> = some(3);
assert.equal(x.contains(2), false);

Example

const x: Option<number> = none;
assert.equal(x.contains(2), false);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.contains

Parameters

Name	Type	Description
`value`	`T`	The value to compare.

Returns

boolean

Implementation of

IOption.contains

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:124

eq

▸ eq(other): false

Checks whether or not other equals with self.

See

https://doc.rust-lang.org/std/cmp/trait.PartialEq.html#tymethod.eq

Parameters

Name	Type	Description
`other`	`None`	The other option to compare.

Returns

false

Implementation of

IOption.eq

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:165

▸ eq(other): boolean

Parameters

Name	Type
`other`	`Option`<`T`>

Returns

boolean

Implementation of

IOption.eq

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:166

expect

▸ expect(message): T

Returns the contained Some value.

Example

const x: Option<string> = some(2);
assert.equal(x.expect('Whoops!'), 2);

Example

const x: Option<string> = none;
assert.throws(() => x.expect('Whoops!'), {
  name: 'OptionError',
  message: 'Whoops'
});

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.expect

Parameters

Name	Type	Description
`message`	`string`	The message for the error. If the value is an `Err`, it throws an OptionError with the given message.

Returns

T

Implementation of

IOption.expect

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:28

filter

▸ filter(predicate): Some<T>

Returns None if the option is None, otherwise calls predicate with the wrapped value and returns:

Some(t) if predicate returns true (where t is the wrapped value), and
None if predicate returns false.

Example

function isEven(value: number) {
  return n % 2 === 0;
}

assert.equal(none.filter(isEven), none);
assert.equal(some(3).filter(isEven), none);
assert.equal(some(4).filter(isEven), some(4));

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.filter

Parameters

Name	Type	Description
`predicate`	(`value`: `T`) => `true`	The predicate.

▸ filter(predicate): None

Parameters

Name	Type
`predicate`	(`value`: `T`) => `false`

Returns

None

Implementation of

IOption.filter

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:118

▸ filter(predicate): Some<T> | None

Parameters

Name	Type
`predicate`	(`value`: `T`) => `boolean`

Returns

Some<T> | None

Implementation of

IOption.filter

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:119

flatten

▸ flatten<Inner>(this): Inner

Converts from Result<Result<T, E>, E> to Result<T, E>.

Example

const x: Option<Option<number>> = some(some(6));
assert.equal(x.flatten(), some(6));

Example

const x: Option<Option<number>> = some(none);
assert.equal(x.flatten(), none);

Example

const x: Option<Option<number>> = none;
assert.equal(x.flatten(), none);

See

https://doc.rust-lang.org/std/result/enum.Result.html#method.flatten

Type parameters

Name	Type
`Inner`	extends `Option`<`any`>

Parameters

Name	Type
`this`	`Some`<`Inner`>

Returns

Inner

Implementation of

IOption.flatten

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:157

inspect

▸ inspect(cb): Some<T>

Calls the provided closure with a reference to the contained value (if Some).

Seealso

inspectAsync for the awaitable version.

Example

some(2).inspect(console.log);
// Logs: 2

Example

none.inspect(console.log);
// Doesn't log

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.inspect

Parameters

Name	Type	Description
`cb`	(`value`: `T`) => `void`	The predicate.

Returns

Some<T>

Implementation of

IOption.inspect

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:68

inspectAsync

▸ inspectAsync(cb): Promise<Some<T>>

Calls the provided closure with a reference to the contained value (if Some).

Seealso

inspect for the sync version.

Example

await some(2).inspectAsync(console.log);
// Logs: 2

Example

await none.inspectAsync(console.log);
// Doesn't log

Note

This is an extension not supported in Rust

Parameters

Name	Type	Description
`cb`	(`value`: `T`) => `unknown`	The predicate.

Returns

Promise<Some<T>>

Implementation of

IOption.inspectAsync

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:73

intoPromise

▸ intoPromise(): Promise<Some<Awaited<T>>>

Returns a Promise object with the awaited value (if Some).

Example

let x = some(Promise.resolve(3));
assert.equal(await x.intoPromise(), some(3));

Note

This is an extension not supported in Rust

Returns

Promise<Some<Awaited<T>>>

Implementation of

IOption.intoPromise

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:161

isNone

▸ isNone(): false

Returns true if the option is a None value.

Example

const x: Option<number> = some(2);
assert.equal(x.isNone(), false);

Example

const x: Option<number> = none;
assert.equal(x.isNone(), true);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.is_none

Returns

false

Implementation of

IOption.isNone

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:24

isSome

▸ isSome(): this is Some<T>

Returns true if the option is a Some value.

Example

const x: Option<number> = some(2);
assert.equal(x.isSome(), true);

Example

const x: Option<number> = none;
assert.equal(x.isSome(), false);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.is_some

Returns

this is Some<T>

Implementation of

IOption.isSome

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:16

isSomeAnd

▸ isSomeAnd<R>(cb): R

Returns true if the option is a Some and the value inside of it matches a predicate.

Example

const x: Option<number> = some(2);
assert.equal(x.isSomeAnd((x) => x > 1), true);

Example

const x: Option<number> = some(0);
assert.equal(x.isSomeAnd((x) => x > 1), false);

Example

const x: Option<number> = none;
assert.equal(x.isSomeAnd((x) => x > 1), false);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.is_some_and

Type parameters

Name	Type
`R`	extends `boolean`

Parameters

Name	Type	Description
`cb`	(`value`: `T`) => `R`	The predicate.

Returns

R

Implementation of

IOption.isSomeAnd

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:20

iter

▸ iter(): Generator<T, any, unknown>

Returns an iterator over the possibly contained value.

The iterator yields one value if the result is Some, otherwise none.

Example

const x = some(7);
for (const value of x) {
  console.log(value);
}
// Logs 7

Example

const x = none;
for (const value of x) {
  console.log(value);
}
// Doesn't log

See

Option.iter
https://doc.rust-lang.org/std/option/enum.Option.html#method.iter

Returns

Generator<T, any, unknown>

Implementation of

IOption.iter

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:88

map

▸ map<U>(cb): Some<U>

Maps an Option<T> to Option<U> by applying a function to a contained value.

Example

const maybeSomeString = some('Hello, world!');
const maybeSomeLength = maybeSomeString.map((value) => value.length);

assert.equal(maybeSomeLength, some(13));

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.map

Type parameters

Name
`U`

Parameters

Name	Type	Description
`cb`	(`value`: `T`) => `U`	The predicate.

Returns

Some<U>

Implementation of

IOption.map

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:47

mapInto

▸ mapInto<R>(cb): R

Maps a Some<T> to the returned Option<U> by applying a function to a contained value, leaving None untouched.

Example

const input: Option<string> = some('Hello, world!');
const result = input.mapInto((value) => some(value.length));

assert.equal(result, some(13));

Example

const input: Option<string> = none;
const result = input.mapInto((value) => some(value.length));

assert.equal(result, none);

Note

This is an extension not supported in Rust

Type parameters

Name	Type
`R`	extends `Option`<`any`>

Parameters

Name	Type	Description
`cb`	(`value`: `T`) => `R`	The predicate.

Returns

R

Implementation of

IOption.mapInto

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:51

mapNoneInto

▸ mapNoneInto(cb): Some<T>

Maps a None to the returned Option<U> by applying a function to a contained value, leaving Some<T> untouched.

Example

const input: Option<string> = some('Hello, world!');
const result = input.mapNoneInto(() => some(13));

assert.equal(result, some('Hello, world!'));

Example

const input: Option<string> = none;
const result = input.mapNoneInto(() => some(13));

assert.equal(result, some(13));

Note

This is an extension not supported in Rust

Parameters

Name	Type	Description
`cb`	() => `Option`<`any`>	The predicate.

Returns

Some<T>

Implementation of

IOption.mapNoneInto

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:63

mapOr

▸ mapOr<U>(_, cb): U

Returns the provided default result (if none), or applies a function to the contained value (if any).

Arguments passed to mapOr are eagerly evaluated; if you are passing the result of a function call, it is recommended to use mapOrElse, which is lazily evaluated.

Example

const x: Option<string> = some('hello');
assert.equal(x.mapOr(42, (value) => value.length), 5);

Example

const x: Option<string> = none;
assert.equal(x.mapOr(42, (value) => value.length), 42);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.map_or

Type parameters

Name
`U`

Parameters

Name	Type	Description
`_`	`U`	The default value.
`cb`	(`value`: `T`) => `U`	The predicate.

Returns

U

Implementation of

IOption.mapOr

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:55

mapOrElse

▸ mapOrElse<U>(_, cb): U

Computes a default function result (if none), or applies a different function to the contained value (if any).

Example

const x: Option<string> = some('hello');
assert.equal(x.mapOrElse(() => 42, (value) => value.length), 5);

Example

const x: Option<string> = none;
assert.equal(x.mapOrElse(() => 42, (value) => value.length), 42);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.map_or_else

Type parameters

Name
`U`

Parameters

Name	Type	Description
`_`	() => `U`	The default value.
`cb`	(`value`: `T`) => `U`	The predicate.

Returns

U

Implementation of

IOption.mapOrElse

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:59

match

▸ match<SomeValue, NoneValue>(branches): SomeValue

Runs ok function if self is Ok, otherwise runs err function.

Example

const option = some(4).match({
  some: (v) => v,
  none: () => 0
});
assert.equal(option, 4);

Example

const option = none.match({
  some: (v) => v,
  none: () => 0
});
assert.equal(option, 0);

Type parameters

Name
`SomeValue`
`NoneValue`

Parameters

Name	Type	Description
`branches`	`Object`	The branches to match.
`branches.none`	() => `NoneValue`	-
`branches.some`	(`value`: `T`) => `SomeValue`	-

Returns

SomeValue

Implementation of

IOption.match

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:177

ne

▸ ne(other): true

Checks whether or not other doesn't equal with self.

See

https://doc.rust-lang.org/std/cmp/trait.PartialEq.html#method.ne

Parameters

Name	Type	Description
`other`	`None`	The other option to compare.

Returns

true

Implementation of

IOption.ne

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:171

▸ ne(other): boolean

Parameters

Name	Type
`other`	`Option`<`T`>

Returns

boolean

Implementation of

IOption.ne

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:172

okOr

▸ okOr(err?): Ok<T>

Transforms the Option<T> into a Result<T, E>, mapping Some(v) to Ok(v) and None to Err(err).

Arguments passed to okOr are eagerly evaluated; if you are passing the result of a function call, it is recommended to use okOrElse, which is lazily evaluated.

Example

const x: Option<string> = some('hello');
assert.equal(x.okOr(0), ok('hello'));

Example

const x: Option<string> = none;
assert.equal(x.okOr(0), err(0));

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.ok_or

Parameters

Name	Type	Description
`err?`	`any`	The error to be used.

Returns

Ok<T>

Implementation of

IOption.okOr

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:78

okOrElse

▸ okOrElse(cb): Ok<T>

Transforms the Option<T> into a Result<T, E>, mapping Some(v) to Ok(v) and None to Err(err()).

Example

const x: Option<string> = some('hello');
assert.equal(x.okOrElse(() => 0), ok('hello'));

Example

const x: Option<string> = none;
assert.equal(x.okOrElse(() => 0), err(0));

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.ok_or_else

Parameters

Name	Type	Description
`cb`	() => `any`	The error to be used.

Returns

Ok<T>

Implementation of

IOption.okOrElse

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:83

or

▸ or(option): Some<T>

Returns the option if it contains a value, otherwise returns option.

Example

const x: Option<number> = some(2);
const y: Option<number> = none;
assert.equal(x.or(y), some(2));

Example

const x: Option<number> = none;
const y: Option<number> = some(100);
assert.equal(x.or(y), some(100));

Example

const x: Option<number> = some(2);
const y: Option<number> = some(100);
assert.equal(x.or(y), some(2));

Example

const x: Option<number> = none;
const y: Option<number> = none;
assert.equal(x.or(y), none);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.or

Parameters

Name	Type	Description
`option`	`Option`<`any`>	The option.

Returns

Some<T>

Implementation of

IOption.or

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:100

orElse

▸ orElse(cb?): Some<T>

Calls cb if the result is Ok, otherwise returns the Err value of self.

This function can be used for control flow based on Result values.

Example

const nobody = (): Option<string> => none;
const vikings = (): Option<string> => some('vikings');

assert.equal(some('barbarians').orElse(vikings), some('barbarians'));
assert.equal(none.orElse(vikings), some('vikings'));
assert.equal(none.orElse(nobody), none);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.or_else

Parameters

Name	Type	Description
`cb?`	() => `Option`<`any`>	The predicate.

Returns

Some<T>

Implementation of

IOption.orElse

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:105

transpose

▸ transpose<Inner>(this): Ok<Some<Inner>>

Transposes an Option of a Result into a Result of an Option.

none will be mapped to ok(none). some(ok(v)) and some(err(e)) will be mapped to ok(some(v)) and err(e).

Example

const x: Option<Result<number, Error>> = some(ok(5));
const y: Result<Option<number>, Error> = ok(some(5));
assert.equal(x.transpose(), y);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.transpose

Type parameters

Name
`Inner`

Parameters

Name	Type
`this`	`Some`<`Ok`<`Inner`>>

Returns

Ok<Some<Inner>>

Implementation of

IOption.transpose

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:147

▸ transpose<Inner>(this): Err<Some<Inner>>

Type parameters

Name
`Inner`

Parameters

Name	Type
`this`	`Some`<`Err`<`Inner`>>

Returns

Err<Some<Inner>>

Implementation of

IOption.transpose

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:148

▸ transpose<IT, E>(this): Result<Some<IT>, E>

Type parameters

Name
`IT`
`E`

Parameters

Name	Type
`this`	`Some`<`Result`<`IT`, `E`>>

Returns

Result<Some<IT>, E>

Implementation of

IOption.transpose

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:149

unwrap

▸ unwrap(): T

Returns the contained Some value.

If the value is an Err, it throws an OptionError with the message.

Seealso

unwrapOr

Seealso

unwrapOrElse

Example

const x: Option<string> = some(2);
assert.equal(x.unwrap(), 2);

Example

const x: Option<string> = none;
assert.throws(() => x.unwrap(), {
  name: 'OptionError',
  message: 'Unwrap failed'
});

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.unwrap

Returns

T

Implementation of

IOption.unwrap

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:33

unwrapOr

▸ unwrapOr(defaultValue): T

Returns the contained Some value or a provided default.

Arguments passed to unwrapOr are eagerly evaluated; if you are passing the result of a function call, it is recommended to use unwrapOrElse, which is lazily evaluated.

Example

assert.equal(some(2).unwrapOr(0), 2);

Example

assert.equal(none.unwrapOr(0), 0);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.unwrap_or

Parameters

Name	Type
`defaultValue`	`unknown`

Returns

T

Implementation of

IOption.unwrapOr

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:37

unwrapOrElse

▸ unwrapOrElse(cb): T

Returns the contained Some value or computes it from a closure.

Example

assert.equal(some(2).unwrapOrElse(() => 0), 2);

Example

assert.equal(none.unwrapOrElse(() => 0), 0);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.unwrap_or_else

Parameters

Name	Type
`cb`	() => `unknown`

Returns

T

Implementation of

IOption.unwrapOrElse

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:42

unzip

▸ unzip<I, U>(this): [Some<I>, Some<U>]

Unzips an option containing a tuple of two options.

If self is Some((a, b)) this method returns [Some(a), Some(b)]. Otherwise, [None, None] is returned.

Example

const x: Option<[number, string]> = some([1, 'hi']);
assert.equal(x.unzip(), [some(1), some('hi')]);

Example

const x: Option<[number, string]> = none;
assert.equal(x.unzip(), [none, none]);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.unzip

Type parameters

Name
`I`
`U`

Parameters

Name	Type
`this`	`Some`<readonly [`I`, `U`]>

Returns

[Some<I>, Some<U>]

Implementation of

IOption.unzip

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:142

xor

▸ xor(option): None

Returns Some if exactly one of self or option is Some, otherwise returns None.

Example

const x: Option<number> = some(2);
const y: Option<number> = none;
assert.equal(x.xor(y), some(2));

Example

const x: Option<number> = none;
const y: Option<number> = some(2);
assert.equal(x.xor(y), some(2));

Example

const x: Option<number> = some(2);
const y: Option<number> = some(2);
assert.equal(x.xor(y), none);

Example

const x: Option<number> = none;
const y: Option<number> = none;
assert.equal(x.xor(y), none);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.xor

Parameters

Name	Type	Description
`option`	`Some`<`T`>	The option to compare.

Returns

None

Implementation of

IOption.xor

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:110

▸ xor(option): Some<T>

Parameters

Name	Type
`option`	`None`

Returns

Some<T>

Implementation of

IOption.xor

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:111

▸ xor(option): Some<T> | None

Parameters

Name	Type
`option`	`Option`<`T`>

Returns

Some<T> | None

Implementation of

IOption.xor

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:112

zip

▸ zip(other): None

Zips self with another Option.

If self is Some(s) and other is Some(o), this method returns Some([s, o]). Otherwise, None is returned.

Example

const x = some(1);
const y = some('hi');
const z = none;

assert.equal(x.zip(y), some([1, 'hi']));
assert.equal(x.zip(z), none);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.zip

Parameters

Name	Type	Description
`other`	`None`	The option to zip self with.

Returns

None

Implementation of

IOption.zip

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:128

▸ zip<U>(other): Some<[T, U]>

Type parameters

Name
`U`

Parameters

Name	Type
`other`	`Some`<`U`>

Returns

Some<[T, U]>

Implementation of

IOption.zip

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:129

▸ zip<U>(other): Option<[T, U]>

Type parameters

Name
`U`

Parameters

Name	Type
`other`	`Option`<`U`>

Returns

Option<[T, U]>

Implementation of

IOption.zip

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:130

zipWith

▸ zipWith<U, R>(other, f): None

Zips self and another Option with function f.

If self is Some(s) and other is Some(o), this method returns Some(f(s, o)). Otherwise, None is returned.

Example

class Point {
  public readonly x: number;
  public readonly y: number;

  public constructor(x: number, y: number) {
    this.x = x;
    this.y = y;
  }
}

const x = some(17.5);
const y = some(42.7);

assert.equal(x.zipWith(y, (s, o) => new Point(s, o)), some(new Point(17.5, 42.7)));
assert.equal(x.zipWith(none, (s, o) => new Point(s, o)), none);

See

https://doc.rust-lang.org/std/option/enum.Option.html#method.zip_with

Type parameters

Name
`U`
`R`

Parameters

Name	Type	Description
`other`	`None`	The option to zip self with.
`f`	(`s`: `T`, `o`: `U`) => `R`	The function that computes the returned value.

Returns

None

Implementation of

IOption.zipWith

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:135

▸ zipWith<U, R>(other, f): Some<R>

Type parameters

Name
`U`
`R`

Parameters

Name	Type
`other`	`Some`<`U`>
`f`	(`s`: `T`, `o`: `U`) => `R`

Returns

Some<R>

Implementation of

IOption.zipWith

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:136

▸ zipWith<U, R>(other, f): Option<R>

Type parameters

Name
`U`
`R`

Parameters

Name	Type
`other`	`Option`<`U`>
`f`	(`s`: `T`, `o`: `U`) => `R`

Returns

Option<R>

Implementation of

IOption.zipWith

Defined in

projects/utilities/packages/result/src/lib/Option/Some.ts:137

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