Here's a chart: https://kpdecker.github.io/six-speed/ https://kpdecker.github.io/six-speed/. Often the answer is "not yet". Transpilers convert the code to ES5,

Here's a chart: https://kpdecker.github.io/six-speed/ https://kpdecker.github.io/six-speed/. Often the answer is "not yet". Transpilers convert the code to ES5, which has benefited from six years or optimization. New ES6 features will take some time to catch up.