eslint-plugin-mattermost

An ESLint plugin containing the configuration used by Mattermost as well as support for custom rules specific to the Mattermost code base.

More information on our style guide is available here.

Custom Rules

no-dispatch-getstate

Prevents passing a redux store's getState into its dispatch as an unnecessary second argument.

We started doing this accidentally at some point because of a misunderstanding about how redux-thunk worked, so this stops anyone from making that same mistake again.

Examples of incorrect code for this rule:

export function someAction() {
    return (dispatch, getState) => {
        dispatch(doSomething(), getState);
    };
}

Examples of correct code for this rule:

export function someAction() {
    return (dispatch) => {
        dispatch(doSomething());
    };
}