taap
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1.2.0 • Public • Published

Type Assertion And Predicate (Taap)

A lightweight zero dependency Typescript type checking library that coerces unknown values. More concise and accurate than typeof checks or similar type checking methods.

📚 Docs   ⚡ Demo   💻 Repo

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🛠 Getting Started

Install dependency

npm i taap

Import and use methods

import { isArray } from 'taap';
 
const maybeArray: unknown = [];
 
if (typeof maybeArray === 'array') {
  🚫 typeof [] === 'object'
} else if (isArray(maybeArray)) {
  // `maybeArray` is now of type: `any[]`
  ✅ maybeArray.push(1);
}

Optionally supply a return type

import { isArray } from 'taap';
 
const maybeArray: unknown = [1, 2, 3];
 
if (isArray<number>(maybeArray)) {
  // `maybeArray` is now of type: `number[]`
  maybeArray.filter((x) => x > 1);
}

🔭 Available Methods

📚Full documentation

Supports optional generic return type:

Fixed return type:

Other:

/taap/

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    npm i taap

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    Version

    1.2.0

    License

    MIT

    Unpacked Size

    44.2 kB

    Total Files

    11

    Last publish

    Collaborators

    • schuchard