<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script>
var a = [1,2,3,5,7,12,45];
var b = [4,9,20,22];
var r = sortArr(a,b);
console.log(r)
function sortArr(a,b){
var c = [];
var j = b.length-1;
for (var i = a.length - 1; i >= 0;) {
if(j >=0){
if(a[i] > b[j]){
c.push(a[i]);
i--;
}else{
c.push(b[j]);
j--;
}
}else{
c.push(a[i]);
i--;
}
}
return c;
}
</script>
</body>
</html>
複製代碼