--- /dev/null
+/**
+ * @fileoverview Rule to flag when initializing octal literal
+ * @author Ilya Volodin
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+ meta: {
+ type: "suggestion",
+
+ docs: {
+ description: "disallow octal literals",
+ category: "Best Practices",
+ recommended: true,
+ url: "https://eslint.org/docs/rules/no-octal"
+ },
+
+ schema: [],
+
+ messages: {
+ noOcatal: "Octal literals should not be used."
+ }
+ },
+
+ create(context) {
+
+ return {
+
+ Literal(node) {
+ if (typeof node.value === "number" && /^0[0-9]/u.test(node.raw)) {
+ context.report({
+ node,
+ messageId: "noOcatal"
+ });
+ }
+ }
+ };
+
+ }
+};