43 lines
848 B
Plaintext
43 lines
848 B
Plaintext
/**
|
|
* @fileoverview Rule to flag when deleting variables
|
|
* @author Ilya Volodin
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Rule Definition
|
|
//------------------------------------------------------------------------------
|
|
|
|
/** @type {import('../shared/types').Rule} */
|
|
module.exports = {
|
|
meta: {
|
|
type: "suggestion",
|
|
|
|
docs: {
|
|
description: "Disallow deleting variables",
|
|
recommended: true,
|
|
url: "https://eslint.org/docs/latest/rules/no-delete-var",
|
|
},
|
|
|
|
schema: [],
|
|
|
|
messages: {
|
|
unexpected: "Variables should not be deleted.",
|
|
},
|
|
},
|
|
|
|
create(context) {
|
|
return {
|
|
UnaryExpression(node) {
|
|
if (
|
|
node.operator === "delete" &&
|
|
node.argument.type === "Identifier"
|
|
) {
|
|
context.report({ node, messageId: "unexpected" });
|
|
}
|
|
},
|
|
};
|
|
},
|
|
};
|