reactjs - Multiple errors on typescript -


i created following class in asp.net core react application:

    import * react 'react';      interface myinputprops {         inputtype: string;         id: string;         classname: string;         parentfunction: (string) => void;     }      export class logininput extends react.component<myinputprops, {}> {         constructor() {             super();              this.onchange = this.onchange.bind(this);         }          private onchange(e) {              this.props.parentfunction(e.target.value);         }          public render() {             return <input type={this.props.inputtype} id={this.props.id} classname={this.props.classname} placeholder="username" onchange={this.onchange} />;         }     }

now i'm getting following errors:

  • (ts) parameter 'string' implicitly has 'any' type.
  • (ts) parameter 'e' implicitly has 'any' type.

can point me doing wrong here?

edit

in solution have following class works fine:

    import * react 'react';     import axios 'axios';     import country './country';     import countrymodel './models/countrymodel';      const countriesuri = 'https://restcountries.eu/rest/v2/all?fields=name;alpha2code';      interface props {         onchange: (string) => void;     }      interface state {         countries: countrymodel[];     }      class countrylist extends react.component<props, state> {         constructor() {             super();              this.state = {                 countries: []             };              this.onchange = this.onchange.bind(this);         }          componentwillmount() {             this.getcountries();         }          private getcountries() {             //         }          private onchange(e) {             this.props.onchange(e.target.value);         }          public render() {             return <select onchange={this.onchange} ref='countries'>                 {                     //                 }             </select>;         }     }      export default countrylist;

you have define types of variables e.g.

interface myinputprops {         parentfunction: (string:string) => void;     }      private onchange(e:any) {          this.props.parentfunction(e.target.value);     }

the error message means if not define type implicitly add :any it. reason check compiler option noimplicitany: true in tsconfig.json


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