@masknet/eslint-plugin/lib/rules/string/no-locale-case.js

eslint plugin for masknet

import { isIdentifier, isMemberExpression } from "../../node.js";
import { createRule } from "../../rule.js";
const RE_METHOD_NAME = /^toLocale(?<name>Upper|Lower)Case$/g;
export default createRule({
    name: 'string/no-locale-case',
    meta: {
        type: 'problem',
        fixable: 'code',
        docs: {
            description: 'Disallow use `String#toLocale{Upper,Lower}Case()`',
            recommended: 'recommended',
        },
        schema: [],
        messages: {
            instead: 'Use `.to{{name}}Case(...)` instead of `.toLocale{{name}}Case()`',
        },
    },
    defaultOptions: [],
    create(context) {
        return {
            CallExpression(node) {
                if (node.arguments.length > 0)
                    return;
                if (!isMemberExpression(node.callee) || !isIdentifier(node.callee.property))
                    return;
                const { property } = node.callee;
                const matched = RE_METHOD_NAME.exec(property.name);
                if (!matched)
                    return;
                context.report({
                    node,
                    data: { name: matched.groups?.name },
                    messageId: 'instead',
                    fix(fixer) {
                        return fixer.replaceText(property, property.name.replaceAll('Locale', ''));
                    },
                });
            },
        };
    },
});
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