class Types

Returns true if the value is a built-in ArrayBuffer or SharedArrayBuffer instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isanyarraybuffer_value

Returns true if the value is an arguments object.

See also:

• https://nodejs.org/api/util.html#util_util_types_isargumentsobject_value

Returns true if the value is a built-in ArrayBuffer instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isarraybuffer_value

Returns true if the value is an async function.

See also:

• https://nodejs.org/api/util.html#util_util_types_isasyncfunction_value

Returns true if the value is a BigInt64Array instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isbigint64array_value

Returns true if the value is a BigUint64Array instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isbiguint64array_value

Returns true if the value is a boolean object, e.g. created by new Boolean().

See also:

• https://nodejs.org/api/util.html#util_util_types_isbooleanobject_value

Returns true if the value is any boxed primitive object, e.g. created by new Boolean(), new String() or Object(Symbol()).

See also:

• https://nodejs.org/api/util.html#util_util_types_isboxedprimitive_value

Returns true if the value is a built-in DataView instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isdataview_value

Returns true if the value is a built-in Date instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isdate_value

Returns true if the value is a native External value.

See also:

• https://nodejs.org/api/util.html#util_util_types_isexternal_value

Returns true if the value is a built-in Float32Array instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isfloat32array_value

Returns true if the value is a built-in Float64Array instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isfloat64array_value

Returns true if the value is a generator function.

See also:

• https://nodejs.org/api/util.html#util_util_types_isgeneratorfunction_value

Returns true if the value is a generator object as returned from a built-in generator function.

See also:

• https://nodejs.org/api/util.html#util_util_types_isgeneratorobject_value

Returns true if the value is a built-in Int16Array instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isint16array_value

Returns true if the value is a built-in Int32Array instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isint32array_value

Returns true if the value is a built-in Int8Array instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isint8array_value

Returns true if the value is a built-in Map instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_ismap_value

Returns true if the value is an iterator returned for a built-in Map instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_ismapiterator_value

Returns true if the value is an instance of a Module Namespace Object.

See also:

• https://nodejs.org/api/util.html#util_util_types_ismodulenamespaceobject_value

Returns true if the value is an instance of a built-in Error type.

See also:

• https://nodejs.org/api/util.html#util_util_types_isnativeerror_value

Returns true if the value is a number object, e.g. created by new Number().

See also:

• https://nodejs.org/api/util.html#util_util_types_isnumberobject_value

Returns true if the value is a built-in Promise.

See also:

• https://nodejs.org/api/util.html#util_util_types_ispromise_value

Returns true if the value is a Proxy instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isproxy_value

Returns true if the value is a regular expression object.

See also:

• https://nodejs.org/api/util.html#util_util_types_isregexp_value

Returns true if the value is a built-in Set instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isset_value

Returns true if the value is an iterator returned for a built-in Set instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_issetiterator_value

Returns true if the value is a built-in SharedArrayBuffer instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_issharedarraybuffer_value

Returns true if the value is a string object, e.g. created by new String().

See also:

• https://nodejs.org/api/util.html#util_util_types_isstringobject_value

Returns true if the value is a symbol object, created by calling Object() on a Symbol primitive.

See also:

• https://nodejs.org/api/util.html#util_util_types_issymbolobject_value

Returns true if the value is a built-in TypedArray instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_istypedarray_value

Returns true if the value is a built-in Uint16Array instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isuint16array_value

Returns true if the value is a built-in Uint32Array instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isuint32array_value

Returns true if the value is a built-in Uint8Array instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isuint8array_value

Returns true if the value is a built-in Uint8ClampedArray instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isuint8clampedarray_value

Returns true if the value is a built-in WeakMap instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isweakmap_value

Returns true if the value is a built-in WeakSet instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_isweakset_value

Returns true if the value is a built-in WebAssembly.Module instance.

See also:

• https://nodejs.org/api/util.html#util_util_types_iswebassemblycompiledmodule_value