js一直报错怎么办？老是显示Uncaught SyntaxError: Unexpected end of input

Question

<script type="text/javascript">
$('#add').click(function(){
getInputNum();
var result = addition(a_int,b_int);
resultNum.innerHTML=string(result);
});
//定义全局变量
var a_int;
var b_int;
//添加点击方式
addbtn.onclick=function(){
getInputNum();
var result=addition(a_int,b_int);
resultNum.innerHTML=string(result);
};
minBtn.onclick=function(){
getInputNum();
var result=minus(a_int,b_int);
resultNum.innerHTML=string(result);
};
mulBtn.onclick=function(){
getInputNum();
var result=multiply(a_int,b_int);
esultNum.innerHTML=string(result);
};
divBtn.onclick=function(){
getInputNum();
var result=divide(a_int,b_int);
esultNum.innerHTML=string(result);
};
//将获取的值转化为数字类型
function getInputNum(){
alert(result);
};
//局部变量
//应用JQuery时：
//var a = $('#n1').val();
var a =document.getElementById('n1').value;
var b =document.getElementById('n2').value;
//赋值给全局变量
a_int=parseInt(a,10);
b_int=parseInt(b,10);
//函数
function addition(x,y){
return x + y;
};
function minus(x,y){
return x - y;
};
function multiply(x,y){
return x * y;
};
function divide(x,y){
if (y==0) {
alert("0不能做除数");
return;
}else{
return x/y;}

</script>

Answer 1

divide函数最后少了一个}