no-self-assign

name = name does nothing. It's usually left over from a refactor, or a typo for this.name = name.

The rule checks =, &&=, ||= and ??=, and looks inside destructuring. count += count isn't reported, because it changes the value.

This rule is on by default.

Configure

On by default as a warning. To turn it off:

[lint.rules]
"no-self-assign" = "off" # or "error"

Every option, set to its default:

[lint.rules]
"no-self-assign" = ["warn", {
  props = true,
}]

Examples

Reported:

function rename(user, name) {
  name = name;
  user.name = user.name;
  [user, name] = [user, "guest"];
}

Not reported:

function rename(user, name) {
  user.name = name;
  [user, name] = [name, user];
}

Options

Option	Default	What it does
props	true	Also report properties, such as user.name = user.name.

Turn props off if your code assigns a property to itself to run its setter:

video.src = video.src; // loads the video again