I use JQuery to get Json data, but the data it display has double quotes. It there a function to remove it?
$(\'div#ListingData\').text(JSON.stringify(data.
The stringfy method is not for parsing JSON, it's for turning an object into a JSON string.
stringfy
The JSON is parsed by jQuery when you load it, you don't need to parse the data to use it. Just use the string in the data:
$('div#ListingData').text(data.data.items[0].links[1].caption);