# 手機端javascript無法使用dbclick功能 解決辦法

###### tags: `Vue` `JavaScript` `dblclick`

## @dblclick.native="doSomething()"

問題：在手機上沒反應

解決辦法：用setTimeout去計算在500ms內，點擊了兩次才執行

範例：

@click="clickTwice(1)"


data() {
    return {
      double_click_count: 0
    };
  },
methods: {
    clickTwice(num) {
        this.double_click_count = this.double_click_count + num;

        setTimeout(() => {
          this.double_click_count = 0;
        }, 500);

        if (this.double_click_count == 2) {
          doSomething....
        }
    }
}