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How to determine if the input box cannot be spaces

php中世界最好的语言
php中世界最好的语言Original
2018-03-17 12:01:541833browse

This time I will bring you a method to determine that the input box cannot be a space. What are the precautions for the method to determine that the input box cannot be a space? The following is a practical case, let's take a look.

The example is as follows:

 var sno = $('#sno').val();
	var sname = $('#sname').val();
	if((sno.indexOf(" ") >= 0 || sno == null) || (sname.indexOf(" ") >= 0 || sname == null)){
		alert('学号和名称不能为空格或null值');
		return;
	}else{
	}
I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other php Chinese websites related articles!

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