[Antoliny0919]

Summary

Closes: #1890

regression in e319b3b

This change fixes the issue where comparisons weren't being performed correctly for string values.
Additionally, it updates the behavior so that NaN values are skipped when present during comparison, and undefined is returned when the array contains only NaN values.
These were additional compatibility issues.

Reproduce

e911de8

console.log(lodash.maxBy([{ v: 'a' }, { v: 'b' }], item => item.v)); // { v: 'b' }
console.log(maxBy([{ v: 'a' }, { v: 'b' }], item => item.v)); // { v: 'a' }
console.log(lodash.minBy([{ v: 'b' }, { v: 'a' }], item => item.v)); // { v: 'a' }
console.log(minBy([{ v: 'b' }, { v: 'a' }], item => item.v)); // { v: 'b' }

aeaad75

console.log(lodash.maxBy([3, NaN, 1, 2], x => x)); // 3
console.log(maxBy([3, NaN, 1, 2], x => x)); // NaN
console.log(lodash.minBy([3, NaN, 1, 2], x => x)); // 1
console.log(minBy([3, NaN, 1, 2], x => x)); // NaN

console.log(lodash.maxBy([NaN, NaN], x => x)); // undefined
console.log(maxBy([NaN, NaN], x => x)); // MaN
console.log(lodash.minBy([NaN, NaN], x => x)); // undefined
console.log(minBy([NaN, NaN], x => x)); // NaN

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Project	Deployment	Actions	Updated (UTC)
es-toolkit	Ready	Preview, Comment	Jul 17, 2026 5:14am

[Antoliny0919]

35d57a4

[raon0211]

Thanks!