wiwiGreen says to Happy Web Developer https://babeljs.io/repl/#?babili=false&browsers=&build=&builtIns=false&code_lz=DYUwLgBAhhC8EHICMAGBAaCAjOiCcCAUIQMYD2AdgM5mgB0wZA5gBQwB82AlKZTfY1YAHKACcqIAJIUwbLhE4jxUmSyxcehIA&debug=false&circleciRepo=&evaluate=true&lineWrap=true&presets=es2015%2Creact%2Cstage-2&prettier=false&targets=&version=6.26.0