routie dev init since i didn't adhere to any proper guidance up until now

frontend/node_modules/eslint-plugin-unicorn/rules/consistent-empty-array-spread.js

@@ -0,0 +1,123 @@
+import {getStaticValue} from '@eslint-community/eslint-utils';
+import {
+	isEmptyArrayExpression,
+	isEmptyStringLiteral,
+} from './ast/index.js';
+
+const MESSAGE_ID = 'consistent-empty-array-spread';
+const messages = {
+	[MESSAGE_ID]: 'Prefer using empty {{replacementDescription}} since the {{anotherNodePosition}} is {{anotherNodeDescription}}.',
+};
+
+const isString = (node, context) => {
+	const staticValueResult = getStaticValue(node, context.sourceCode.getScope(node));
+	return typeof staticValueResult?.value === 'string';
+};
+
+const isArray = (node, context) => {
+	if (node.type === 'ArrayExpression') {
+		return true;
+	}
+
+	const staticValueResult = getStaticValue(node, context.sourceCode.getScope(node));
+	return Array.isArray(staticValueResult?.value);
+};
+
+const cases = [
+	{
+		oneSidePredicate: isEmptyStringLiteral,
+		anotherSidePredicate: isArray,
+		anotherNodeDescription: 'an array',
+		replacementDescription: 'array',
+		replacementCode: '[]',
+	},
+	{
+		oneSidePredicate: isEmptyArrayExpression,
+		anotherSidePredicate: isString,
+		anotherNodeDescription: 'a string',
+		replacementDescription: 'string',
+		replacementCode: '\'\'',
+	},
+];
+
+function createProblem({
+	problemNode,
+	anotherNodePosition,
+	anotherNodeDescription,
+	replacementDescription,
+	replacementCode,
+}) {
+	return {
+		node: problemNode,
+		messageId: MESSAGE_ID,
+		data: {
+			replacementDescription,
+			anotherNodePosition,
+			anotherNodeDescription,
+		},
+		fix: fixer => fixer.replaceText(problemNode, replacementCode),
+	};
+}
+
+function getProblem(conditionalExpression, context) {
+	const {
+		consequent,
+		alternate,
+	} = conditionalExpression;
+
+	for (const problemCase of cases) {
+		const {
+			oneSidePredicate,
+			anotherSidePredicate,
+		} = problemCase;
+
+		if (oneSidePredicate(consequent, context) && anotherSidePredicate(alternate, context)) {
+			return createProblem({
+				...problemCase,
+				problemNode: consequent,
+				anotherNodePosition: 'alternate',
+			});
+		}
+
+		if (oneSidePredicate(alternate, context) && anotherSidePredicate(consequent, context)) {
+			return createProblem({
+				...problemCase,
+				problemNode: alternate,
+				anotherNodePosition: 'consequent',
+			});
+		}
+	}
+}
+
+/** @param {import('eslint').Rule.RuleContext} context */
+const create = context => {
+	context.on('ArrayExpression', function * (arrayExpression) {
+		for (const element of arrayExpression.elements) {
+			if (
+				element?.type !== 'SpreadElement'
+				|| element.argument.type !== 'ConditionalExpression'
+			) {
+				continue;
+			}
+
+			yield getProblem(element.argument, context);
+		}
+	});
+};
+
+/** @type {import('eslint').Rule.RuleModule} */
+const config = {
+	create,
+	meta: {
+		type: 'suggestion',
+		docs: {
+			description: 'Prefer consistent types when spreading a ternary in an array literal.',
+			recommended: true,
+		},
+		fixable: 'code',
+
+		messages,
+	},
+};
+
+export default config;