deno.com
function isFloat64Array
#isFloat64Array(object: unknown): object is Float64Array

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

util.types.isFloat64Array(new ArrayBuffer());  // Returns false
util.types.isFloat64Array(new Uint8Array());  // Returns false
util.types.isFloat64Array(new Float64Array());  // Returns true

Parameters #

#object: unknown

Return Type #

object is Float64Array