Overview
Introduction
Most clamping tools bound a number's overall value, but sometimes you want to constrain the individual digits themselves — for instance, capping every digit at 5 so a code never contains a 6, 7, 8, or 9.
This tool applies a digit-by-digit clamp to each integer in a list, reassembling a new number from the bounded digits.
What Is Integer Digit Clamper?
A batch tool that takes every digit of each integer's absolute value and pushes it into a [minDigit, maxDigit] range (both 0-9), then reassembles the digit string back into a number.
The original sign is kept exactly as entered; only the digit characters themselves are adjusted.
How Integer Digit Clamper Works
Each line is parsed as an integer, and its sign is separated from its absolute-value digit string.
Every individual digit character is converted to a number and clamped with `Math.min(Math.max(digit, minDigit), maxDigit)`.
The clamped digits are joined back into a string and the original sign, if any, is reattached in front.
When To Use Integer Digit Clamper
Use it when you need every digit of a set of codes or IDs to avoid certain high or low digit values entirely (e.g. avoiding 9s for a display quirk).
It's also useful for generating a bounded-digit variant of a number for puzzles or constrained-alphabet numeric codes.
Often used alongside Integer Clamper, Integer Digit Picker and Integer Digit Duplicator.
Features
Advantages
- Operates purely on digit characters, so it works identically regardless of how large the underlying number is.
- Keeps the original sign and digit count intact; only individual digit values are changed.
Limitations
- This changes the shape of the number in a way that doesn't correspond to any standard arithmetic clamp; it's a digit-level transformation, not a value-level one.
- A leading digit clamped down to 0 can look unusual (e.g. "907" clamped to max digit 5 becomes "507", not a leading zero, since only the digit value is bounded, not removed).
Examples
Best Practices & Notes
Best Practices
- Use a narrow digit range deliberately; a range like [4,5] will make most output numbers look very repetitive.
- Combine with Integer Digit Picker afterward if you only need to inspect one resulting digit rather than the whole reassembled number.
Developer Notes
The sign and digit string are split apart before clamping (via a leading "-" check) so the per-digit `Math.min(Math.max(...))` clamp never has to special-case the minus sign as if it were a digit character.
Integer Digit Clamper Use Cases
- Generating a constrained-alphabet variant of numeric codes that avoids certain digit values
- Exploring how bounding individual digits reshapes a number, for teaching place value and digit-level operations
- Creating puzzle or game data where every digit must fall within a fixed sub-range
Common Mistakes
- Expecting this to bound the number's overall magnitude like Integer Clamper does — it only bounds individual digit values, which can still produce a very large or small resulting number.
- Setting Min digit greater than Max digit, which the tool rejects since there's no valid digit range.
Tips
- Try minDigit=0, maxDigit=9 to confirm the tool leaves values completely unchanged, as a sanity check.
- Use Integer Digit Duplicator afterward for a further stylized transformation of the clamped digits.