typecheck
Really simple type check function tool with Pure JavaScript. Check varible type in JavaScript. Rewrited by TypeScript
Install
npm i @konata9/typecheck.jsUsage
require usage has benn changed!
import typecheck from '@konata9/typecheck.js';
// or
import { typeCheck } from '@konata9/typecheck.js';
// or
const { typecheck } = require('@konata9/typecheck.js');
const arr = [];
typecheck(arr); // arraytypecheck(target)
The target is the varible you want to check. The return type string in table below.
| type | example | return |
|---|---|---|
| string | typecheck("a") |
string |
| number | typecheck(1) |
number |
| boolean | typecheck(true) |
boolean |
| null | typecheck(null) |
null |
| undefined | typecheck(undefined) |
undefined |
| Object | typecheck({}) |
object |
| Array | typecheck([]) |
array |
| Set | typecheck(new Set()) |
set |
| Map | typecheck(new Map()) |
map |
| Symobol | typecheck(Symbol()) |
symbol |
| Function | typecheck((a, b)=> a + b) |
function |
Test
This module is tested by mocha. You can find the test case in test folder or run the test command below (You need full source on the github page).
npm run test