vue 滚动条到最底部 vue进入页面时滚动条始终在底部

private scrollToBottom() {
      this.$nextTick(() => {
        const container = this.$el.querySelector(".chatDialog-wrap");
        // @ts-ignore
        container.scrollTop = container.scrollHeight;
      });
    }

　　

private mounted() {
    this.scrollToBottom();
}

private updated() {
    this.scrollToBottom();
}

　　

原生

function scrollToBottom() {
    var container = document.getElementsByClassName('chat-above')[0];
    container.scrollTop = container.scrollHeight;
}