Disallow Self Assignment (no-self-assign)

Self assignments have no effect, so probably those are an error due to incomplete refactoring. Those indicate that what you should do is still remaining.

foo = foo;
[bar, baz] = [bar, qiz];

Rule Details

This rule is aimed at eliminating self assignments.

Examples of incorrect code for this rule:

/*eslint no-self-assign: "error"*/

foo = foo;

[a, b] = [a, b];

[a, ...b] = [x, ...b];

({a, b} = {a, x});

Examples of correct code for this rule:

/*eslint no-self-assign: "error"*/

foo = bar;
[a, b] = [b, a];

// This pattern is warned by the `no-use-before-define` rule.
let foo = foo;

// The default values have an effect.
[foo = 1] = [foo];

When Not To Use It

If you don’t want to notify about self assignments, then it’s safe to disable this rule.


This rule was introduced in ESLint 2.0.0-rc.0.