SweetAlert2 使用过程中弹框报错问题记录与解决

学 JAVA 没多久，做项目过程中，遇到了这个问题便记录了下来

报错位置--->

<input type="text" class="form-control" id="typename" placeholder="请输入类别名">
// 绑定文本框失去焦点事件 获取焦点
$("#typename").blur(function(){
	// 得到文本框的值
	var typeName = $("#typename").val();
	// 判断参数是否为空
	if(typeName == ""){
		swal("","类别名不能为空","warning");
		return;
	}
});

当在页面测试，文本框失去焦点时，出现如下错误提示，使用的浏览器：Chrome

解决方案--->将这段格式化后的代码改回来就好了，我也不知道为什么

<div class="swal2-container">
	<div class="swal2-overlay" tabindex="-1"></div>
	<div class="swal2-modal" style="display: none" tabindex="-1">
		<div class="swal2-icon swal2-error">
			<span class="x-mark"><span class="line left"></span><span
				class="line right"></span></span>
		</div>
		<div class="swal2-icon swal2-question">?</div>
		<div class="swal2-icon swal2-warning">!</div>
		<div class="swal2-icon swal2-info">i</div>
		<div class="swal2-icon swal2-success">
			<span class="line tip"></span> <span class="line long"></span>
			<div class="placeholder"></div>
			<div class="fix"></div>
		</div>
		<img class="swal2-image">
		<h2></h2>
		<div class="swal2-content"></div>
		<input class="swal2-input"><select class="swal2-select"></select>
		<div class="swal2-radio"></div>
		<label for="swal2-checkbox" class="swal2-checkbox"><input
			type="checkbox" id="swal2-checkbox"></label>
		<textarea class="swal2-textarea"></textarea>
		<div class="swal2-validationerror"></div>
		<hr class="swal2-spacer">
		<button class="swal2-confirm">OK</button>
		<button class="swal2-cancel">Cancel</button>
		<span class="swal2-close">×</span>
	</div>
</div>

改为--->

<div class="swal2-container"><div class="swal2-overlay" tabindex="-1"></div><div class="swal2-modal" style="display: none" tabindex="-1"><div class="swal2-icon swal2-error"><span class="x-mark"><span class="line left"></span><span class="line right"></span></span></div><div class="swal2-icon swal2-question">?</div><div class="swal2-icon swal2-warning">!</div><div class="swal2-icon swal2-info">i</div><div class="swal2-icon swal2-success"><span class="line tip"></span> <span class="line long"></span><div class="placeholder"></div> <div class="fix"></div></div><img class="swal2-image"><h2></h2><div class="swal2-content"></div><input class="swal2-input"><select class="swal2-select"></select><div class="swal2-radio"></div><label for="swal2-checkbox" class="swal2-checkbox"><input type="checkbox" id="swal2-checkbox"></label><textarea class="swal2-textarea"></textarea><div class="swal2-validationerror"></div><hr class="swal2-spacer"><button class="swal2-confirm">OK</button><button class="swal2-cancel">Cancel</button><span class="swal2-close">×</span></div></div>

正常弹框--->