1. String.prototype.padStart(), String.prototype.padEnd()

    The `padStart()` and `padEnd()` methods pad the current string with a given string (eventually repeated) so that the resulting string reaches a given length. The pad is applied from the start (left) of the current string for `padStart()`, and applied from the end (right) of the current string for `padEnd()`.

  2. abstractrange api: startcontainer

  3. abstractrange api: startoffset

  4. animation api: starttime

  5. audiobuffersourcenode api: start

  6. chapterinformation api: starttime

  7. cssscoperule api: start

  8. document api: startviewtransition

  9. document api: startviewtransition: `options` parameter

  10. document api: startviewtransition: `options` parameter: `options.types` parameter

  11. document api: startviewtransition: `options` parameter: `options.update` parameter

  12. document api: startviewtransition: `updatecallback` parameter

  13. element api: startviewtransition

  14. htmlmarqueeelement api: start

  15. htmlolistelement api: start

  16. idledetector api: start

  17. mediarecorder api: start

  18. messageport api: start

  19. offlineaudiocontext api: startrendering

  20. offlineaudiocontext api: startrendering: returns a `promise`

  21. performanceentry api: starttime

  22. presentationrequest api: start

  23. range api: startcontainer

  24. range api: startoffset

  25. sensor api: start

  26. serviceworkercontainer api: startmessages

  27. speechrecognition api: start

  28. speechrecognition api: start: `audiotrack` parameter

  29. staticrange api: startcontainer

  30. staticrange api: startoffset

  31. svgtextpathelement api: startoffset

  32. texttrackcue api: starttime

  33. timeranges api: start

  34. viewtimeline api: startoffset

  35. visibilitystateentry api: starttime

  36. css property: align-items: start

  37. css property: align-self: start

  38. css property: justify-self: start

  39. css property: place-items: start

  40. css property: place-self: start

  41. css property: ruby-align: start

  42. css property: text-align: start

  43. css property: text-anchor: start

  44. html element: ol: start

  45. javascript built-in: string: startswith

  46. javascript built-in: temporal api: zoneddatetime: startofday

  47. webapp: start_url

  48. svg element: textpath: startoffset