JSFiddle - React, Tailwind, and code Playground

by ponyspy

JavaScript

var get_locale = function get_locale(option, lang) {
  return ((option.filter(function(locale) {
    return locale.lg == lang;
  })[0] || {}).value || '')
};

var field = [
	{
  	lg: 'ru',
    value: 'cool'
  }
]

var res = get_locale(field, 'en')

alert(res)