Enforce spacing around the `` in `yield` expressions (yield-star-spacing)

The --fix option on the command line can automatically fix some of the problems reported by this rule.

Rule Details

This rule enforces spacing around the * in yield* expressions.

The rule takes one option, an object, which has two keys before and after having boolean values true or false.

before enforces spacing between the yield and the *. If true, a space is required, otherwise spaces are disallowed.
after enforces spacing between the * and the argument. If it is true, a space is required, otherwise spaces are disallowed.

The default is {"before": false, "after": true}.

"yield-star-spacing": ["error", {"before": true, "after": false}]

The option also has a string shorthand:

"yield-star-spacing": ["error", "after"]

Examples of correct code for this rule with the default "after" option:

/*eslint yield-star-spacing: ["error", "after"]*/
/*eslint-env es6*/

function* generator() {
  yield* other();
}

Examples of correct code for this rule with the "before" option:

/*eslint yield-star-spacing: ["error", "before"]*/
/*eslint-env es6*/

function *generator() {
  yield *other();
}

Examples of correct code for this rule with the "both" option:

/*eslint yield-star-spacing: ["error", "both"]*/
/*eslint-env es6*/

function * generator() {
  yield * other();
}

Examples of correct code for this rule with the "neither" option:

/*eslint yield-star-spacing: ["error", "neither"]*/
/*eslint-env es6*/

function*generator() {
  yield*other();
}

If your project will not be using generators or you are not concerned with spacing consistency, you do not need this rule.

This rule was introduced in ESLint 2.0.0-alpha-1.