js定位方法

先创建一个js文件，编写好该方法。之后页面哪里需要就直接引入

/*
* 弹窗偏移
* x 偏移x轴坐标
* e 要显示的dialog的id
* */
function deviation(x, e, margin = '128px 0 0') {
  const dialog = document.getElementById(e).children[0]
  let left = x - dialog.clientWidth / 2
  const boundary = x + dialog.clientWidth / 2
  if (left < 0) {
    left = 0
  } else if (boundary > 15360) {
    left = 15000 - dialog.clientWidth / 2
  }
  dialog.style.left = `${left}px`
  dialog.style.margin = margin
}

import { deviation } from '文件的地址'
iconClick(event) {
  const x = e.x
  this.$nextTick(() => {
    deviation(x, 'dom的ID')
  })
},