javascript - 如何更改 typescript 中的CSS样式？

Question

在 typescript 中如何像我这样更改 css 样式？

$(".s-hand").css("transform", "translate(-50%, -100%) rotate(" + s*6 + "deg)");

或

var hourPointer   = document.querySelector('.hour')
hourPointer.style[transform]   = `rotate(${hour}deg)`;

因为我不知道如何实现它..

Answer 1

必须这样做:

let shand = document.getElementsByClassName('s-hand') as HTMLCollectionOf<HTMLElement>;

if (shand.length != 0) {
  shand[0].style.transform = "translate(-50%, -100%) rotate(" + s * 6 + "deg)";
}