CODE EXAMPLE FOR HTML

capitalize input text html

//for angular
(input)="onInput($event)"  

onInput(event) {
    event.target.value = event.target.value.toLocaleUpperCase();
}

//for HTML
(onInput)="onInput($event)"  

onInput(event) {
    event.target.value = event.target.value.toLocaleUpperCase();
}