javascript中如何将数组以[1,2,3]的形式打印出来，大家帮我修改一下
<!doctype html>
<html>
<head>
<meta charset="UTF-8"/>
</head>
<body>
<script type="text/javascript">
var str="[";
arr2=[1,2,3];
function dis(arr){
for(int i=0;i<arr.length;i++){
if(arr[i]！=arr[arr.length-1]){
str+=arr[i]+",";
}
else{
str+=arr[i]+"]";
}
}
document.write(str);
}
dis(arr2);
</script>
</body>
</html>
缥缈止盈浏览 473回答 3
3回答
-
慕少森
<!doctype html><html><head> <meta charset="UTF-8"/></head><body><script type="text/javascript"> arr2=[1,2,3]; document.write("["+arr2.join(",")+"]");</script></body></html> -
心有法竹
var arr2String = `[${arr2.toString()}]`; document.write(arr2String); -
智慧大石
'['+arr2.toString()+']'
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相关分类
JavaScript