简化(Minify simplify)

Example

function foo() {
  if (x) a();
}
function foo2() {
  if (x) a();
  else b();
}

Out

function foo() {
  x && a();
}
function foo2() {
  x ? a() : b();
}

undefined
foo['bar']
Number(foo)

Out

void 0
foo.bar
+foo

npm install babel-plugin-minify-simplify

.babelrc

{
  "plugins": ["minify-simplify"]
}

babel --plugins minify-simplify script.js

require("babel-core").transform("code", {
  plugins: ["minify-simplify"]
});