JS中如何用正则匹配特定字符之间的其它字符?

Question

格式如下:XX1122334455XXXX6677889900XX现在想匹配出XX之间的字符.结果应该是:XX1122334455XX和XX6677889900XX数据必须以XX开头

Answer 1

varre=newRegExp('(XX\\w+?XX)+','g');
varcontent='XX1122334455XXsdaXX6677889900XX';
varrel;
while(rel=re.exec(content)){
console.log(rel[1]);
}
                            

Answer 2

varstr='XX1122334455XXXX6677889900XXXk3jlsnl1nlj.nlXXNlkeiXXX',
result=str.match(/XX.*?XX/g);
console.log(result);
//result=["XX1122334455XX","XX6677889900XX","XXNlkeiXX"]