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JAVASCRIPT / STATIC PROPERTY

String.includes

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THE OBSERVATIONS

Browser support

Legacy observations · test dates were not recorded. Versions shown are those tested, not the latest browser releases.

Chrome

66 versions tested
  1. 66Absent
  2. 65Absent
  3. 64Absent
  4. 63Absent
  5. 62Absent
  6. 61Absent
  7. 60Absent
  8. 59Absent
+ 58 older

Edge

4 versions tested
  1. 16Absent
  2. 15Absent
  3. 14Absent
  4. 13Absent

Firefox

57 versions tested
  1. 59Present
  2. 58Present
  3. 57Present
  4. 56Present
  5. 55Present
  6. 54Present
  7. 53Present
  8. 52Present
+ 49 older

Safari

7 versions tested
  1. 11Absent
  2. 10.1Absent
  3. 10Absent
  4. 9.1Absent
  5. 9Absent
  6. 8Absent
  7. 7Absent

iOS Safari

4 versions tested
  1. 11.0Absent
  2. 11Absent
  3. 10Absent
  4. 9Absent

Chrome Android

1 version tested
  1. 65Absent
PresentAbsentUnknownPresence ≠ a correct implementation.

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