static-type-assert
    TypeScript icon, indicating that this package has built-in type declarations

    4.0.1 • Public • Published

    Static Type Assert

    Asserting type with help of TypeScript compiler

    Requirements

    • Node.js ≥ 8.9.0
    • TypeScript ≥ 3.0.0

    Usage

    1. Create TypeScript files

    Example: pass.ts

    import assert from 'static-type-assert'
     
    // Comma-separated parameters
    assert<string>('hello', 'world')
    assert<number>(123, 456, 789)
     
    // Curry function calls
    assert<'abc' | 'def' | 123 | 456>('abc')(123)('def')(456)
     
    // Combine
    assert<string | number>('a', 0)('c', 'd')(1, 2)

    Example: fail.ts

    import assert from 'static-type-assert'
    assert<number>('abc') // Expected Error: Argument of type '"abc"' is not assignable to type 'number'

    2. Use TypeScript compiler to check types

    tsc --noEmit

    Example: pass.ts

    tsc --noEmit pass.ts # Expects to pass (no errors) 

    Example: fail.ts

    tsc --noEmit fail.ts # Expects errors 

    License

    MIT © Hoàng Văn Khải

    Install

    npm i static-type-assert

    DownloadsWeekly Downloads

    22

    Version

    4.0.1

    License

    MIT

    Unpacked Size

    8.81 kB

    Total Files

    9

    Last publish

    Collaborators

    • khai96_