Javascript 获取jQquery Ajax Response的长度
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Get the length of jQquery Ajax Response
提问by under5hell
I need to count the length of an Ajax response done in jQuery. The response is in JSON format and only contains a single string. I get the value but have no idea how to count the length of this string.
我需要计算在 jQuery 中完成的 Ajax 响应的长度。响应采用 JSON 格式，仅包含一个字符串。我得到了值，但不知道如何计算这个字符串的长度。
Here's my code :
这是我的代码：
var tempId;
$.ajax({
url: "<?=base_url();?>index.php/sell/decoder",
type: "POST",
data: {'str' : sometext},
dataType: 'json',
async: false,
success: function(response) {
tempId = response; // This gives me a return value as a string. For example = 153
alert(tempId.length); // But this returns "undefined". What should I do to get the length?
}
});
Here's the structure of the response header:
这是响应头的结构：
Connection Keep-Alive
Content-Length 2
Content-Type text/html
Date Fri, 06 Jul 2012 08:12:12 GMT
Keep-Alive timeout=5, max=86
Server Apache
X-Powered-By PHP/5.3.10
回答by fedmich
Do an if condition then convert it to string first, then count the length as needed.
执行 if 条件，然后先将其转换为字符串，然后根据需要计算长度。
success: function(response) {
if(response){
alert( (response + '').length );
}
}
回答by Niranda
Or convert your value (I guess it is an integer) to string:
或者将您的值（我猜它是一个整数）转换为字符串：
tempId.toString().length
回答by Surekha
tempId.String.lengthworked for me!
tempId.String.length为我工作！
回答by Dinesh Gopal Chand
If you know the response is not an object then
如果您知道响应不是对象，那么
success: function(response) {
if(response){
alert( (response + '').length );
}
}
will work well.
会很好用。
but if response will be in the form of Object like
但如果响应将采用 Object 的形式，例如
[{name:'some-name',details:[....something]}]
I would suggest use below code
我建议使用下面的代码
success: function(response) {
length=0;
if(response){
length=JSON.stringify(response).length;
}
console.log(length)
}
I think this code will work like a charm for you.
我认为这段代码对你来说就像一个魅力。
