reactjs - TypeScript ReactDOM Property 'type' is missing on component -

-

getting following error:

error   ts2345  argument of type 'typeof somecomponent'  not assignable parameter of type 'reactelement<{}>'. property 'type' missing in type 'typeof somecomponent'.

got following code typescript code:

import * react 'react'; import * reactdom 'react-dom';  interface iprops{}     interface istate {}  class somecomponent extends react.component<iprops, istate> {     render() {         return <div />;     } }  var component = somecomponent; var root = document.getelementbyid("root");  reactdom.render(component , root);

i tried following:

class somecomponent extends react.component<iprops, istate> {     render() {         return <div />;     }      type() {         return "test";     } }

should like:

interface iprops{}     interface istate {}  class somecomponent extends react.component<iprops, istate> {     render() {         return <div />;     } }  reactdom.render(<somecomponent /> , document.getelementbyid("root"));

you don't pass component class render function, need pass instance.

edit

this:

var component = somecomponent;

assigns reference class somecomponent component variable, meaning if can both , same:

var componentinstance1 = <somecomponent /> var componentinstance2 = <component />

if don't want use jsx/tsx notation when constructing component need pass props:

var component = new somecomponent(props);

Comments

Post a Comment

Popular posts from this blog

Django REST Framework perform_create: You cannot call `.save()` after accessing `serializer.data` -

-
i have following viewset: class artistprofileviewset(viewsets.modelviewset): queryset = artistprofile.objects.all() serializer_class = artistprofileserializer def perform_create(self, serializer): if serializer.is_valid(): serializer.save() with following serializers: class simpleartisttrackserializer(serializers.hyperlinkedmodelserializer): class meta: model = artisttrack fields = (...my fields...) class artistprofileserializer(serializers.hyperlinkedmodelserializer): owners = userserializer(many=true, required=false) tracks = simpleartisttrackserializer(many=true, required=false) class meta: model = artistprofile fields = (...my fields...) i getting following error: assertionerror: cannot call `.save()` after accessing `serializer.data`.if need access data before committing database inspect 'serializer.validated_data' instead. i don't see editing serializer.data object. th...
Read more

Why does Go error when trying to marshal this JSON? -

-
i'm trying rather simple example of trying decode json file structs using golang. however, when attempting error that json: cannot unmarshal object go value of type []main.track which don't understand. here's code in question, , json can found here . package main import ( "encoding/json" "fmt" "net/http" "os" ) // tracks group of track types type tracks struct { tracks []track } // track represents singular track type track struct { name string url string artist artist } // artist represents single artist type artist struct { name string mbid string url string } func main() { url := "http://ws.audioscrobbler.com/2.0/?method=geo.gettoptracks&api_key=c1572082105bd40d247836b5c1819623&format=json&country=netherlands" response, err := http.get(url) if err != nil { fmt.printf("%s\n", err) os.exit(1) } de...
Read more