0.0.2 • Published 3 years ago
awesome-typeof v0.0.2
awesome-typeof
Detect JavaScript variable type.
Install
npm i awesome-typeof --saveUsage
awesome-typeof accepts two parameters, the first parameter is the object to be detected, the second parameter is an optional mode, the default value is 1, and it can be 0 or 2.
import typeOf from 'awesome-typeof';
// const typeOf = require('awesome-typeof').default;
typeOf([])
// => "Array"
typeOf([], 0)
// => "object"
typeOf([], 2)
// => "Empty-Array"About mode
| mode = 0 | mode = 1 | mode = 2 | |
|---|---|---|---|
123 | "number" | "number" | "number" |
NaN | "number" | "number" | "NaN-number" |
Infinity | "number" | "number" | "Infinity-number" |
-Infinity | "number" | "number" | "-Infinity-number" |
new Number(123) | "object" | "Number" | "Number" |
new Number(NaN) | "object" | "Number" | "NaN-Number" |
new Number(Infinity) | "object" | "Number" | "Infinity-Number" |
new Number(-Infinity) | "object" | "Number" | "-Infinity-Number" |
'123' | "string" | "string" | "NonEmpty-string" |
'' | "string" | "string" | "Empty-string" |
new String('123') | "object" | "String" | "NonEmpty-String" |
new String('') | "object" | "String" | "Empty-String" |
true | "boolean" | "boolean" | "boolean" |
new Boolean(true) | "object" | "Boolean" | "Boolean" |
Symbol(1) | "symbol" | "symbol" | "symbol" |
Object(Symbol(1)) | "object" | "Symbol" | "Symbol" |
1n | "bigint" | "bigint" | "bigint" |
Object(1n) | "object" | "BigInt" | "BigInt" |
undefined | "undefined" | "undefined" | "undefined" |
Object(null) | "null" | "null" | "null" |
new Set() | "object" | "Set" | "Empty-Set" |
new Set([1, 2, 3]) | "object" | "Set" | "NonEmpty-Set" |
new Map() | "object" | "Map" | "Empty-Map" |
new Map([['a', [1, 2, 3]]]) | "object" | "Map" | "NonEmpty-Map" |
[] | "object" | "Array" | "Empty-Array" |
[1,2,3] | "object" | "Array" | "NonEmpty-Array" |
function() {} | "object" | "Function" | "Function" |
() => 1 | "object" | "Function" | "Arrow-Function" \| "Function" |
class MyClass{} | "object" | "Function" | "Class" \| "Function" |
new MyClass() | "object" | "MyClass" | "MyClass" |
Promise.resolve(1) | "object" | "Promise" | "Promise" |
/123/ | "object" | "RegExp" | "RegExp" |
| ..... . | ...... | ...... | ...... |
⚠️ If your code is translated, then when the mode is 2, the judgment result of the arrow function and class may be "Function".