Add components

slider/node_modules/eslint/lib/rules/no-negated-in-lhs.js

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+/**
+ * @fileoverview A rule to disallow negated left operands of the `in` operator
+ * @author Michael Ficarra
+ * @deprecated in ESLint v3.3.0
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../types').Rule.RuleModule} */
+module.exports = {
+	meta: {
+		type: "problem",
+
+		docs: {
+			description:
+				"Disallow negating the left operand in `in` expressions",
+			recommended: false,
+			url: "https://eslint.org/docs/latest/rules/no-negated-in-lhs",
+		},
+
+		deprecated: {
+			message: "Renamed rule.",
+			url: "https://eslint.org/blog/2016/08/eslint-v3.3.0-released/#deprecated-rules",
+			deprecatedSince: "3.3.0",
+			availableUntil: null,
+			replacedBy: [
+				{
+					rule: {
+						name: "no-unsafe-negation",
+						url: "https://eslint.org/docs/rules/no-unsafe-negation",
+					},
+				},
+			],
+		},
+		schema: [],
+
+		messages: {
+			negatedLHS: "The 'in' expression's left operand is negated.",
+		},
+	},
+
+	create(context) {
+		return {
+			BinaryExpression(node) {
+				if (
+					node.operator === "in" &&
+					node.left.type === "UnaryExpression" &&
+					node.left.operator === "!"
+				) {
+					context.report({ node, messageId: "negatedLHS" });
+				}
+			},
+		};
+	},
+};