常用的区段查询表单验证

1.正整数区段查询

支持全不填，全填，和单独填任意一个

html 代码

<div class="layui-input-inline">
  <input
    type="text"
    id="sjtjStartMile"
    placeholder="开始里程（m）"
    autocomplete="off"
    class="layui-input"
  />
</div>
<div class="layui-form-mid">-</div>
<div class="layui-input-inline">
  <input
    type="text"
    id="sjtjEndMile"
    placeholder="结束里程（m）"
    autocomplete="off"
    class="layui-input"
  />
</div>

js 代码

// 表单验证开始
let startMile = $('#sjtjStartMile').val()
let endMile = $('#sjtjEndMile').val()
if (isNaN(startMile) || Number(startMile) < 0) {
  Hussar.info('起始里程必须大于等于0')
  return
}
if (isNaN(endMile) || Number(endMile) < 0) {
  Hussar.info('终止里程必须大于等于0')
  return
}
if (startMile && endMile && Number(startMile) >= Number(endMile)) {
  Hussar.info('起始里程必须小于终止里程')
  return
}
// 表单验证结束