Write a basic `validate(schema, data)` that checks if data matches the schema. Support types: "string", "number", "boolean", "object" (with properties), "array".

💡 Hint 1: Check the schema type against typeof data. 💡 Hint 2: For "object" type, recursively validate each property in schema.properties. 💡 Hint 3: Handle nested objects by recursing. Handle required fields. ✅ Solution: ```javascript function validate(schema, data) { const errors = []; function check(s, d, path) { if (s.type === "object") { if (typeof d !== "object" || d === null) { errors.push(`${path}: expected object`); return; } if (s.properties) { for (const key in s.properties) { check(s.properties[key], d[key], `${path}.${key}`); } } } else if (s.type === "array") { if (!Array.isArray(d)) errors.push(`${path}: expected array`); } else if (typeof d !== s.type) { errors.push(`${path}: expected ${s.type}, got ${typeof d}`); } } check(schema, data, "root"); return { valid: errors.length === 0, errors }; } ```