在异步回调中解析var

Question

I'm making a .get request to the ipinfo API to obtain the country code, then lowercase the string and parse it to a second function which should pickup the country code (example: us) and display the flag based on ISO 3166-1 alpha-2.

Although countrySelect() seems to be ignoring my country variable.
A default country gets set on page load ('gb'), but then my callback should overwrite that.

Any idea of what's going on?

var country;
$.get("https://ipinfo.io/country", function(data) {
  var usercountry = data; // gets .country = ip location
  lusercountry = usercountry.toLowerCase(); // ie. GB to gb
  lusercountry = lusercountry.replace(/\s+/g, ''); // takes additional space off the string
  country = "'" + lusercountry + "'"; // adds '' to the .country string
  $("#country_selector").countrySelect("selectCountry", country);
});

$("#country_selector").countrySelect({
  defaultCountry: 'gb',
  //preferredCountries: []
});

Answer 1

According to the documentation , the method countrySelect takes a string when used with "selectCountry". There is no need to quote the string like this:

country = "'"+lusercountry+"'";

Simply pass lusercountry as is. ie

$("#country_selector").countrySelect("selectCountry", lusercountry);

Answer 2

just pass usercountry to countrySelect, and you can minify your cod like that

 var usercountry = data.toLowerCase().trim();
 $("#country_selector").countrySelect("selectCountry", usercountry);

Use trim() instead of replace, there is only one additional space at the end, trim do the job