babel-plugin-transform-simplify-comparison-operators

Convert === and !== to == and != if their types are inferred to be the same.

Example

typeof foo === "object";

Out

typeof foo == "object";

npm install babel-plugin-transform-simplify-comparison-operators

.babelrc

{
  "plugins": ["transform-simplify-comparison-operators"]
}

babel --plugins transform-simplify-comparison-operators script.js

require("@babel/core").transform("code", {
  plugins: ["transform-simplify-comparison-operators"]
});