如何使用jQuery从URL解析JSON数据

Question

I need to parse json data from the url

http://www.apilayer.net/api/live?access_key=f40041...&format=1

and i need the value for "USDAED" and assign it to input.

{
  "success":true,
  "terms":"https:\/\/currencylayer.com\/terms",
  "privacy":"https:\/\/currencylayer.com\/privacy",
  "timestamp":1483594992,
  "source":"USD",
  "quotes":{
    "USDAED":3.672802,
    "USDAFN":66.699997,
    "USDALL":129.729996,
    "USDAMD":483.440002,
    "USDANG":1.76987,
    "USDAOA":165.078003,
    "USDARS":16.059999,
  }
}

Answer 1

You can use $.getJSON() to get data, the .val() to input value;

var URL = "http://www.example.com/...................."
$.getJSON(URL, function(d) {
  console.log(d.quotes.USDAED)
  $('#dummy').val(d.quotes.USDAED)
})

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input id='dummy'/>