Usage of standard library is restricted

Rule arkts-limited-stdlib

Severity: error

ArkTS does not allow using some APIs from the TypeScript/JavaScript standard library. The most part of the restricted APIs relates to manipulating objects in a dynamic manner, which is not compatible with static typing. The usage of the following APIs is prohibited:

Properties and functions of the global object: eval

Object: __proto__, __defineGetter__, __defineSetter__, __lookupGetter__, __lookupSetter__, assign, create, defineProperties, defineProperty, freeze, fromEntries, getOwnPropertyDescriptor, getOwnPropertyDescriptors, getOwnPropertySymbols, getPrototypeOf, hasOwnProperty, is, isExtensible, isFrozen, isPrototypeOf, isSealed, preventExtensions, propertyIsEnumerable, seal, setPrototypeOf

Reflect: apply, construct, defineProperty, deleteProperty, getOwnPropertyDescriptor, getPrototypeOf, isExtensible, preventExtensions, setPrototypeOf

Proxy: handler.apply(), handler.construct(), handler.defineProperty(), handler.deleteProperty(), handler.get(), handler.getOwnPropertyDescriptor(), handler.getPrototypeOf(), handler.has(), handler.isExtensible(), handler.ownKeys(), handler.preventExtensions(), handler.set(), handler.setPrototypeOf()

See also

• Recipe 001: Objects with property names that are not identifiers are not supported (arkts-identifiers-as-prop-names)
• Recipe 002: Symbol() API is not supported (arkts-no-symbol)
• Recipe 029: Indexed access is not supported for fields (arkts-no-props-by-index)
• Recipe 060: typeof operator is allowed only in expression contexts (arkts-no-type-query)
• Recipe 066: in operator is not supported (arkts-no-in)
• Recipe 137: globalThis is not supported (arkts-no-globalthis)