JSFiddle - React, Tailwind, and code Playground

JavaScript

var obj = {
    '1': 'a',
    '2': 'b',
    '3': 'c'   
};

var arr = [];
    
for (var key in obj) {
    if (obj.hasOwnProperty(key)) {
      arr.push(obj[key]);   
    }
}
    
console.log(arr);