Disallow Use of Chained Assignment Expressions (no-multi-assign)

Chaining the assignment of variables can lead to unexpected results and be difficult to read.

a = b = c = d;

Rule Details

This rule disallows using multiple assignments within a single statement.

Examples of incorrect code for this rule:

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

var a = b = c = 5;

var foo = bar = "baz";

var a =
    b =
    c;

Examples of correct code for this rule:

/*eslint no-multi-assign: "error"*/
var a = 5;
var b = 5;
var c = 5;

var foo = "baz";
var bar = "baz";

var a = c;
var b = c;

Version

This rule was introduced in ESLint 3.14.0.

Resources


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