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Form input widget type="number" does not display the correct value for large integers

dtougas
dtougas
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The following input field does not display the correct value in Firefox 57.0.3 (OS X 10.12.6):

<input type="number" name="id" value="20609529146343161" />

When viewed, the field shows "20609529146343200" instead of the actual value.

The following input field does not display the correct value in Firefox 57.0.3 (OS X 10.12.6): <input type="number" name="id" value="20609529146343161" /> When viewed, the field shows "20609529146343200" instead of the actual value.

All Replies (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
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Hmm, up to 16 characters good, after that, bad. (This is on Windows 7.)

  • 1234567890123456 OK (increment works as expected)
  • 12345678901234567 BAD (increment rounds/invisible)
  • 1234567890123.01 OK
  • 12345678901234.01 BAD

I don't see this documented: https://developer.mozilla.org/docs/Web/HTML/Element/input/number

This bug seems to be related: Bug 1164402 - 16+ digit strings typed into <input type=number> by a user can't reliably be obtained via input.value