JSFiddle - React, Tailwind, and code Playground

by appleboy

HTML

<div id="result">aaa</div>

JavaScript

var language = {
    'foo': 'test_1',
    'bar': 'test_2'
};

var lang = function(key_index, default_val) {
    var value = language[key_index] || default_val;
    $('#result').text(value);
};

lang('foo1', 'test2');