鸿蒙-防抖

export default  class ClickUtil {
  private static instance: ClickUtil;
  private lastClickTime: number = 0;

  private constructor() {
  }

  public static getInstance(): ClickUtil {
    if (!ClickUtil.instance) {
      ClickUtil.instance = new ClickUtil();
    }
    return ClickUtil.instance;
  }

  public isDoubleClick(delay = 500): boolean {
    const currentTime = new Date().getTime();
    //防止用户主动调整到上次时间之前
    if (currentTime < this.lastClickTime) {
      this.lastClickTime = 0
    }
    if (currentTime - this.lastClickTime > delay) {
      this.lastClickTime = currentTime;
      return false;
    } else {
      return true;
    }
  }
}