no-multi-assign.js
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/**
* @fileoverview Rule to check use of chained assignment expressions
* @author Stewart Rand
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
type: "suggestion",
docs: {
description: "disallow use of chained assignment expressions",
category: "Stylistic Issues",
recommended: false,
url: "https://eslint.org/docs/rules/no-multi-assign"
},
schema: [],
messages: {
unexpectedChain: "Unexpected chained assignment."
}
},
create(context) {
//--------------------------------------------------------------------------
// Public
//--------------------------------------------------------------------------
return {
AssignmentExpression(node) {
if (["AssignmentExpression", "VariableDeclarator"].indexOf(node.parent.type) !== -1) {
context.report({
node,
messageId: "unexpectedChain"
});
}
}
};
}
};