js判断除了空格换行之外是否为空
用正则匹配空格和换行符,将他替换删除,判断剩下的值length==0
var str = " /n/n/n" var text = str.replace(/\s+|[\r\n]/g,"") if(text.length==0){ console.log("当前str为空") }
用正则匹配空格和换行符,将他替换删除,判断剩下的值length==0
var str = " /n/n/n" var text = str.replace(/\s+|[\r\n]/g,"") if(text.length==0){ console.log("当前str为空") }