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A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.
Pure functional utilities for nullable types
Full featured implementation of options into typescript.
Well-typed functional Maybe monad
Nullable type and helper functions for typescript
Zero cost Option type for AssemblyScript
A lightweight and chainable utility for effortless data type conversation in JavaScript and Node.js
- castium
- data-transformation
- type-conversion
- cast
- javascript-utils
- type-casting
- data-types
- js-utils
- data-processing
- type-coercion
- convert
- cast-utils
- js-casting
- nullable
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Tiny (220 bytes), zero dependency wrapper for nullable values
Just function to predicate non nullable with type guard.
- check
- is
- non-nullable
- nonnullable
- null
- undefined
- nullable
- present
- blank
- typescript
- type-guard
- filter
- type
- narrowing
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@IsNullable validator for class-validator
This library provides a way to make properties nullable in Angular templates.
TypeScript maybe monad for reaching child fields inside complicated objects.
Check if a value is property accessible
not nil map - Map a function over nullable value
maybe use maaybe
A stateless implementation of the maybe monad
TypeScript utility types
´´´typescript import { Optional } from 'optional-ts';
Lightweight, correct type inference, a good helper for covering presets.
plain implementation of Maybe (Optional, Nullable) monad