In
!x && foo();
alert(0 && new Foo());Out
x || foo();
alert(0);npm install babel-plugin-minify-guarded-expressions.babelrc
{
"plugins": ["minify-guarded-expressions"]
}babel --plugins minify-guarded-expressions script.jsrequire("babel-core").transform("code", {
plugins: ["minify-guarded-expressions"]
});