1. Array.prototype.findIndex

    The `findIndex()` method returns the index of the first element in the array that satisfies the provided testing function.

  2. flat & flatMap array methods

    Methods to flatten any sub-arrays found in an array by concatenating their elements.

  3. Shared Array Buffer

    Type of ArrayBuffer that can be shared across Workers.

  4. Typed Arrays

    JavaScript typed arrays provide a mechanism for accessing raw binary data much more efficiently. Includes: `Int8Array`, `Uint8Array`, `Uint8ClampedArray`, `Int16Array`, `Uint16Array`, `Int32Array`, `Uint32Array`, `Float32Array` & `Float64Array`

  5. dommatrixreadonly api: `fromfloat32array()` static method

  6. dommatrixreadonly api: `fromfloat64array()` static method

  7. dommatrixreadonly api: `tofloat32array()`

  8. dommatrixreadonly api: `tofloat64array()`

  9. dommatrix api: `fromfloat32array()` static method

  10. dommatrix api: `fromfloat64array()` static method

  11. gpudevice api: createpipelinelayout: `bindgrouplayouts` array accepts `null` values.

  12. pushmessagedata api: arraybuffer

  13. rtcdatachannel api: binarytype: `arraybuffer` value

  14. javascript built-in: array: [symbol.iterator]

  15. javascript built-in: array: at

  16. javascript built-in: array: concat

  17. javascript built-in: array: flat

  18. javascript built-in: array: flatmap

  19. javascript built-in: atomics: atomic operations on non-shared `arraybuffer` objects

  20. javascript built-in: dataview: `dataview()` constructor: `sharedarraybuffer` accepted as buffer

  21. javascript built-in: float16array

  22. javascript built-in: float16array: `float16array()` constructor

  23. javascript built-in: float32array

  24. javascript built-in: float32array: `float32array()` constructor

  25. javascript built-in: float32array: `float32array()` constructor: `new float32array(iterable)`

  26. javascript built-in: float64array

  27. javascript built-in: float64array: `float64array()` constructor

  28. javascript built-in: float64array: `float64array()` constructor: `new float64array(iterable)`

  29. javascript built-in: iterator: toarray

  30. javascript built-in: typedarray: [symbol.iterator]

  31. javascript built-in: typedarray: at

  32. javascript operator: destructuring assignment: rest in arrays

  33. javascript operator: spread syntax (...): spread in array literals