fix(scale): handle Number.MAX_VALUE in linear scale without overflow #12185
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When a dataset contains extremely large values near Number.MAX_VALUE, the scale's tick generation algorithm could overflow when trying to compute 'nice' values, causing the chart to crash or the browser tab to become unresponsive. This fix: - Adds SAFE_MAX/SAFE_MIN constants (half of MAX_VALUE) to prevent overflow - Clamps data range values before tick generation calculations - Ensures niceMin/niceMax stay within safe bounds after rounding Fixes chartjs#12184
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Summary
Fixes #12184
When a dataset contains
Number.MAX_VALUE, the linear scale's tick generation algorithm would overflow when computing "nice" tick values, causing the chart to crash or render incorrectly.Changes
SAFE_MAXandSAFE_MINconstants (set toNumber.MAX_VALUE / 2) to prevent overflow during calculationsniceMinandniceMaxstay within safe bounds after roundingTesting
Added test cases for both
Number.MAX_VALUEand-Number.MAX_VALUEin datasets to ensure the chart renders without crashing and produces finite scale bounds.