type-dragoon

Type enforcer for JavaScript in Node.js

Installation

npm i type-dragoon

Importing

const t = require('type-dragoon');

Usage

General

const name = 'Lelouch';
const age = 18;
const alive = false;

t({string: name}, {number: age}, {boolean: alive});
// continues if correct types, else throws an error

Multiple types

t({'number|string': 18});

Custom errors

t({boolean: 'not a boolean', TypeError: 'My generic error'});
// throws 'TypeError: My generic error'

Callback on error

t({object: undefined, onWrongType: () => {
    console.log('My nice callback');
}});

Data types

• undefined
• null
• object
• array
• boolean
• function
• number
• bigint
• string
• symbol

Error types (mdn)

• EvalError
• RangeError
• ReferenceError
• SyntaxError
• TypeError
• URIError