Sat Apr 05
typescript
Author：Noritaka
// const input = document.getElementById('input');
// const input: HTMLElement | null
const input1 = <HTMLInputElement>document.getElementById(('input'));
input1.value = 'initial input value';
const input2 = document.getElementById('input') as HTMLInputElement;
input2.value = 'initial input value';
(<HTMLInputElement>document.getElementById('input')).value = 'initial input value';
(document.getElementById('output') as HTMLInputElement).value = 'initial input value';