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+|[
]/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+|[
]/g,"")
if(text.length==0){
console.log("当前str为空")
}