TypeTags .Reflect
Overview
Reflect is a built-in object that provides methods for interceptable JavaScript operations. The methods are the same as those of proxy handlers. Reflect is not a function object, so it's not constructible.
Usage
import { TypeTags } from 'typetags'
function grades(a, b, c) { this.sum = a + b + c}
const args = [1, 2, 3]
const res = Reflect.construct(grades, args)
console.log(res.sum)// expected output: 6
TypeTags.get(res) === TypeTags.Reflect// → false
TypeTags.get(Reflect) === TypeTags.Reflect// → true
console.log(TypeTags.Reflect)// → [object Reflect]Metadata (TType)
| Metadata | Value |
|---|---|
.type | Reflect |
.tag | [object Reflect] |
.builtin() | undefined |
.getTag() | [object Reflect] |
.hasSpecialArgs() | false |
.instance() | undefined |
.instanceTypeOf() | object |
.info() | see more |
.isAvailable() | true |
.isConstructor() | false |
.isFactory() | false |
.isFunction() | false |
.isGlobal() | true |
.isIterator() | false |
.isNested() | false |
.isObject() | true |
.isPrimitive() | false |
.isStringifiable() | true |
.isSyntatic() | false |
.isTypedArray() | false |
.ownKeys() | [defineProperty, deleteProperty, apply, construct, get, getOwnPropertyDescriptor, getPrototypeOf, has, isExtensible, ownKeys, preventExtensions, set, setPrototypeOf] |
.toString() | function toString() { [native code] } |
.typeOf() | object |
Signature
declare type ITypeTags = { [key in Types | NestedTypes]: Tags}
declare interface Predicate { predicate(value: any): boolean}