读取从网址下载的csv数据中的单个数据 [英] Read single data in csv data downloaded from url

问题描述

我试图从Yahoo! Finance获取数据，以获取与此网址进行货币兑换的价值，假设我在javascript中兑换USD到EUR的货币。

I'm trying to fetch the data from Yahoo! Finance to get value for currency exchange with this url assuming I'm getting currency exchange for USD to EUR in javascript

http://download.finance.yahoo.com/d/quotes.csv?s=USDEUR=X&f=l1

在csv中，我将只收到一个我需要的值。例如。 - '0.8994'

in the csv, I would receive just the one value I need. Eg. - '0.8994'

现在，在同一个javascript文件中，我想将此值传递给一个变量

Now, in same javascript file, I want this value to be pass into a variable

var USDEUR;

此时，我不知道如何从下载的csv传递值。有人能告诉我如何正确地这样做吗？

at this point, I'm not sure how to pass the value from the downloaded csv. Could someone enlighten me how to do this properly?

提前感谢

推荐答案

需要将这个文件解析为csv，它基本上是一个纯文本字符串？假设jquery：

It seems you don't actually need to parse this file as a csv, it's basically a plain text string? Assuming jquery:

var USDEUR;
$.ajax({
    type: "GET",
    url: "http://download.finance.yahoo.com/d/quotes.csv?s=USDEUR=X&f=l1",
    dataType: "text",
    success: function(data) {USDEUR = data}
 });

编辑：似乎网址有访问控制问题，您可能无法使用来自客户端的XHTTP请求。此数据是否意味着作为公共API访问？

It seems the url has access control issues, you may not be able to do this with a XHTTP request from the client. Is this data meant to be accessed as a public API?

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