TechySafi: yes, as pointed out by tinymark and SPeed_FANat1c, it was a problem with the form plugin. Today I was trying to get types to work with computed values, because I am using WebStorm and I prefer to have full inspections working. Code: Formik onSubmit function is not working on my code; Contact Us Navigate to the folder where you want to create your project file. const isDialogOpen = useSelector ( (state: RootState) => state. The defaultProps can be defined as a property on the component class itself to set the default props for the class. intput field submit button; how to insert input tag in html; how to select only one checkbox in html; input radio; how to update html before alert; javascript upload file without input; onclick input text select; how to put a name on a fieldset; how to add an input next to each other I was just saying that the event.currentTarget.value type is string | string[] | number, and even though I know that my FormControl type is "text", and the value is a string for sure, I still cannot simply assign event.currentTarget.value to a string variable. Contact Us React/Ionic: Data from database shows undefined when trying to make Axios request. The purpose of the HTML onsubmit attribute is to execute the code specified, when the associated form is submitted. Our dedicated development team is here for you! Property 'app' does not exist on type 'AppComponent' 0 Reactive form giving error Property 'email' does not exist on type 'AppComponent' Hot Network Questions Recreate Minecraft's lighting I need to cast it to string type by doing A request made via XMLHttpRequest can fetch the data in one of two ways, asynchronously or synchronously. And in the controller ts file, I have: ngOnInit(): void { this.myForm = new FormGroup({ ; int: new FormControl() I get the following error: 1.) 7. By the above declarations, you would access authenticated as a direct property of the class, as in AuthService.authenticated(). If it's a DOM element you need to cast it to the correct type: handle Change (event) { this.set State ( {value: (event.target as HTMLInputElement) .value}); } This will infer the "correct" type for the state variable as well though being explicit is probably better. Please see the Redux docs on TypeScript usage, as well as the React-Redux docs page on static typing for examples. In reactive forms, using ngNoForm is unnecessary because the