demo_transform_object_keys.js

const code = `
(function(){
    var object = {
        foo: 'test1',
        bar: {
            baz: 'test2'
        }
    };
})(); 
`
const options = {
  compact: false,
  transformObjectKeys: true
}

const obfuscator = require('javascript-obfuscator')

function obfuscate(code, options) {
  return obfuscator.obfuscate(code, options).getObfuscatedCode()
}

console.log(obfuscate(code, options))