Question

js如何用正则表达式匹配后缀为jpg或htm???

Answer 1

<script type="text/javascript">
function test2(){
var t=document.getElementById('test').value;
reg=/(*).img\$/gi;
if(reg.test(t))
{
alert("ok");
}else{
alert("not ok");
}
}
</script>
<input id ='test' size='12'><a href="javascript:test2();">take a test</a>

追问

匹配后缀为htm可以咩？？？

追答

function test2(){
var t=document.getElementById('test').value;
reg=/([^\s]+(?=\.(jpg|htm))\.\2)/gi;
if(reg.test(t))
{
alert("ok");
}else{
alert("not ok");
}
}

take a test

我又修改了，以本次为准

Answer 2

/\w+\.(jpg|htm)