eslint-plugin-no-useless-assign

Prevent useless assignment of the form:

var foo = bar;
return foo;

var foo;
// ...
foo = bar;
return foo;

Usage

npm i --save-dev eslint-plugin-no-useless-assign

{
  "plugins": [
    "no-useless-assign"
  ],
  "rules": {
    "no-useless-assign/no-useless-assign": 2
  }
}