How to select from json by first letter of name in Angularjs?

Question

Angular

Hello! How can you select in Angularjs by the first letter in an array? For example, there is this json file:

[
  {
    "code": "AD",
    "name": "Andorra",
    "population": "84000"
  },
  {
    "code": "AF",
    "name": "Afghanistan",
    "population": "29121286"
  }, 
  {
    "code": "BA",
    "name": "Bosnia and Herzegovina",
    "population": "4590000"
  },
  {
    "code": "BB",
    "name": "Barbados",
    "population": "285653"
  },    
]

I need to display only what starts with "A" in the name "code". Those. the result should be like this:

[
  {
    "code": "AD",
    "name": "Andorra",
    "population": "84000"
  },
  {
    "code": "AF",
    "name": "Afghanistan",
    "population": "29121286"
  },  
]

I read about custom filters for Angular and found an example, but it turned out to display by the full name.
jsfiddle.net/varnxmv1 is an example.

Answer 1

arr.filter((city)=> {
return city.code.charAt().toLowerCase() === 'a';
})