ts-03-lru-cache

[
  {
    "total": 7,
    "answer": "```ts\nexport class LRUCache<K, V> {\n  private capacity: number;\n  private size: number;\n  private cache: Map<K, V>;\n  private keys: Array<K>;\n\n  constructor(capacity: number) {\n    if (capacity < 1) {\n      throw new RangeError(\"Capacity must be at least 1\");\n    }\n    this.capacity = capacity;\n    this.size = 0;\n    this.cache = new Map<K, V>();\n    this.keys = [];\n  }\n\n  get(key: K): V | undefined {\n    if (!this.cache.has(key)) {\n      return undefined;\n    }\n    const value = this.cache.get(key);\n    this.keys[this.keys.indexOf(key)] = this.size;\n    this.keys.sort((a, b) => b - a);\n    return value;\n  }\n\n  put(key: K, value: V): void {\n    if (this.cache.has(key)) {\n      this.cache.set(key, value);\n      this.keys[this.keys.indexOf(key)] = this.size;\n      this.keys.sort((a, b) => b - a);\n    } else {\n      if (this.size === this.capacity) {\n        const oldestKey = this.keys.shift();\n        this.cache.delete(oldestKey);\n      }\n      this.cache.set(key, value);\n      this.keys.push(this.size);\n      this.size = this.size === this.capacity ? this.keys.pop() : this.size;\n    }\n  }\n\n  get size(): number {\n    return this.size;\n  }\n}\n```",
    "passed": 2,
    "test_error": "Context.<anonymous> (/tmp/llmlab-ts-03-lru-cache-udqm4vd0/solution.test.ts:36:10)\n    Test.runInAsyncScope (node:async_hooks:227:14)\n    Test.run (node:internal/test_runner/test:1306:25)\n    Test.processPendingSubtests (node:internal/test_runner/test:897:18)\n    Test.postRun (node:internal/test_runner/test:1447:19)\n    Test.run (node:internal/test_runner/test:1372:12)\n    async Test.processPendingSubtests (node:internal/test_runner/test:897:7)\n  ...\n# Subtest: put updates existing key and marks it used\nnot ok 5 - put updates existing key and marks it used\n  ---\n  duration_ms: 0.149631\n  type: 'test'\n  location: '/tmp/llmlab-ts-03-lru-cache-udqm4vd0/solution.test.ts:1:841'\n  failureType: 'testCodeFailure'\n  error: |-\n    Expected values to be strictly equal:\n    \n    2 !== undefined\n    \n  code: 'ERR_ASSERTION'\n  name: 'AssertionError'\n  actual: 2\n  operator: 'strictEqual'\n  stack: |-\n    TestContext.<anonymous> (/tmp/llmlab-ts-03-lru-cache-udqm4vd0/solution.test.ts:48:10)\n    Test.runInAsyncScope (node:async_hooks:227:14)\n    Test.run (node:internal/test_runner/test:1306:25)\n    Test.processPendingSubtests (node:internal/test_runner/test:897:18)\n    Test.postRun (node:internal/test_runner/test:1447:19)\n    Test.run (node:internal/test_runner/test:1372:12)\n    async Test.processPendingSubtests (node:internal/test_runner/test:897:7)\n  ...\n# Subtest: capacity of 1 keeps only the newest\nnot ok 6 - capacity of 1 keeps only the newest\n  ---\n  duration_ms: 0.120102\n  type: 'test'\n  location: '/tmp/llmlab-ts-03-lru-cache-udqm4vd0/solution.test.ts:1:1085'\n  failureType: 'testCodeFailure'\n  error: |-\n    Expected values to be strictly equal:\n    \n    'one' !== undefined\n    \n  code: 'ERR_ASSERTION'\n  name: 'AssertionError'\n  actual: 'one'\n  operator: 'strictEqual'\n  stack: |-\n    TestContext.<anonymous> (/tmp/llmlab-ts-03-lru-cache-udqm4vd0/solution.test.ts:57:10)\n    Test.runInAsyncScope (node:async_hooks:227:14)\n    Test.run (node:internal/test_runner/test:1306:25)\n    Test.processPendingSubtests (node:internal/test_runner/test:897:18)\n    Test.postRun (node:internal/test_runner/test:1447:19)\n    Test.run (node:internal/test_runner/test:1372:12)\n    async Test.processPendingSubtests (node:internal/test_runner/test:897:7)\n  ...\n# Subtest: invalid capacity throws RangeError\nok 7 - invalid capacity throws RangeError\n  ---\n  duration_ms: 0.197082\n  type: 'test'\n  ...\n1..7\n# tests 7\n# suites 0\n# pass 2\n# fail 5\n# cancelled 0\n# skipped 0\n# todo 0\n# duration_ms 81.194167"
  },
  {
    "total": 7,
    "answer": "```ts\nexport class LRUCache<K, V> {\n  private capacity: number;\n  private size: number;\n  private cache: Map<K, V>;\n  private keys: Array<K>;\n\n  constructor(capacity: number) {\n    if (capacity < 1) {\n      throw new RangeError(\"Capacity must be at least 1\");\n    }\n    this.capacity = capacity;\n    this.size = 0;\n    this.cache = new Map<K, V>();\n    this.keys = [];\n  }\n\n  get(key: K): V | undefined {\n    if (!this.cache.has(key)) {\n      return undefined;\n    }\n    const value = this.cache.get(key);\n    this.keys[this.keys.indexOf(key)] = this.size;\n    this.keys.sort((a, b) => b - a);\n    return value;\n  }\n\n  put(key: K, value: V): void {\n    if (this.cache.has(key)) {\n      this.cache.set(key, value);\n      this.keys[this.keys.indexOf(key)] = this.size;\n      this.keys.sort((a, b) => b - a);\n    } else {\n      if (this.size === this.capacity) {\n        const oldestKey = this.keys.shift();\n        this.cache.delete(oldestKey);\n      }\n      this.cache.set(key, value);\n      this.keys.push(this.size);\n      this.size = this.size === this.capacity ? this.keys.pop() : this.size;\n    }\n  }\n\n  get size(): number {\n    return this.size;\n  }\n}\n```",
    "passed": 2,
    "test_error": "Context.<anonymous> (/tmp/llmlab-ts-03-lru-cache-d4a1qln7/solution.test.ts:36:10)\n    Test.runInAsyncScope (node:async_hooks:227:14)\n    Test.run (node:internal/test_runner/test:1306:25)\n    Test.processPendingSubtests (node:internal/test_runner/test:897:18)\n    Test.postRun (node:internal/test_runner/test:1447:19)\n    Test.run (node:internal/test_runner/test:1372:12)\n    async Test.processPendingSubtests (node:internal/test_runner/test:897:7)\n  ...\n# Subtest: put updates existing key and marks it used\nnot ok 5 - put updates existing key and marks it used\n  ---\n  duration_ms: 0.092711\n  type: 'test'\n  location: '/tmp/llmlab-ts-03-lru-cache-d4a1qln7/solution.test.ts:1:841'\n  failureType: 'testCodeFailure'\n  error: |-\n    Expected values to be strictly equal:\n    \n    2 !== undefined\n    \n  code: 'ERR_ASSERTION'\n  name: 'AssertionError'\n  actual: 2\n  operator: 'strictEqual'\n  stack: |-\n    TestContext.<anonymous> (/tmp/llmlab-ts-03-lru-cache-d4a1qln7/solution.test.ts:48:10)\n    Test.runInAsyncScope (node:async_hooks:227:14)\n    Test.run (node:internal/test_runner/test:1306:25)\n    Test.processPendingSubtests (node:internal/test_runner/test:897:18)\n    Test.postRun (node:internal/test_runner/test:1447:19)\n    Test.run (node:internal/test_runner/test:1372:12)\n    async Test.processPendingSubtests (node:internal/test_runner/test:897:7)\n  ...\n# Subtest: capacity of 1 keeps only the newest\nnot ok 6 - capacity of 1 keeps only the newest\n  ---\n  duration_ms: 0.101931\n  type: 'test'\n  location: '/tmp/llmlab-ts-03-lru-cache-d4a1qln7/solution.test.ts:1:1085'\n  failureType: 'testCodeFailure'\n  error: |-\n    Expected values to be strictly equal:\n    \n    'one' !== undefined\n    \n  code: 'ERR_ASSERTION'\n  name: 'AssertionError'\n  actual: 'one'\n  operator: 'strictEqual'\n  stack: |-\n    TestContext.<anonymous> (/tmp/llmlab-ts-03-lru-cache-d4a1qln7/solution.test.ts:57:10)\n    Test.runInAsyncScope (node:async_hooks:227:14)\n    Test.run (node:internal/test_runner/test:1306:25)\n    Test.processPendingSubtests (node:internal/test_runner/test:897:18)\n    Test.postRun (node:internal/test_runner/test:1447:19)\n    Test.run (node:internal/test_runner/test:1372:12)\n    async Test.processPendingSubtests (node:internal/test_runner/test:897:7)\n  ...\n# Subtest: invalid capacity throws RangeError\nok 7 - invalid capacity throws RangeError\n  ---\n  duration_ms: 0.518516\n  type: 'test'\n  ...\n1..7\n# tests 7\n# suites 0\n# pass 2\n# fail 5\n# cancelled 0\n# skipped 0\n# todo 0\n# duration_ms 77.277465"
  },
  {
    "total": 7,
    "answer": "```ts\nexport class LRUCache<K, V> {\n  private capacity: number;\n  private size: number;\n  private cache: Map<K, V>;\n  private keys: Array<K>;\n\n  constructor(capacity: number) {\n    if (capacity < 1) {\n      throw new RangeError(\"Capacity must be at least 1\");\n    }\n    this.capacity = capacity;\n    this.size = 0;\n    this.cache = new Map<K, V>();\n    this.keys = [];\n  }\n\n  get(key: K): V | undefined {\n    if (!this.cache.has(key)) {\n      return undefined;\n    }\n    const value = this.cache.get(key);\n    this.keys[this.keys.indexOf(key)] = this.size;\n    this.keys.sort((a, b) => b - a);\n    return value;\n  }\n\n  put(key: K, value: V): void {\n    if (this.cache.has(key)) {\n      this.cache.set(key, value);\n      this.keys[this.keys.indexOf(key)] = this.size;\n      this.keys.sort((a, b) => b - a);\n    } else {\n      if (this.size === this.capacity) {\n        const oldestKey = this.keys.shift();\n        this.cache.delete(oldestKey);\n      }\n      this.cache.set(key, value);\n      this.keys.push(this.size);\n      this.size = this.size === this.capacity ? this.keys.pop() : this.size;\n    }\n  }\n\n  get size(): number {\n    return this.size;\n  }\n}\n```",
    "passed": 2,
    "test_error": ""
  }
]

You are an expert programmer. Solve the task exactly as specified. Output your solution as fenced code blocks using the required file name(s) and the exact function/type signatures requested. Prefer correctness; do not include prose outside code unless asked.