8000 The issue that _.isNumber(NaN) returns true. VERSION 4.17.21 · Issue #5981 · lodash/lodash · GitHub
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The issue that _.isNumber(NaN) returns true. VERSION 4.17.21 #5981

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Taylorzhao opened this issue Apr 18, 2025 · 1 comment · May be fixed by #5982
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The issue that _.isNumber(NaN) returns true. VERSION 4.17.21 #5981

Taylorzhao opened this issue Apr 18, 2025 · 1 comment · May be fixed by #5982

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@Taylorzhao
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As shown in the figure, when using the isNumber function, passing NaN as the parameter returns true.
@Taylorzhao Taylorzhao changed the title The issue that _.isNumber(NaN) returns true. The issue that _.isNumber(NaN) returns true. VERSION 4.17.21 Apr 18, 2025
@Rishiyaduwanshi Rishiyaduwanshi linked a pull request Apr 20, 2025 that will close this issue
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isNumber - Lodash documentation

The _.isNumber method checks whether a value is of the Number type. To exclude Infinity, -Infinity, and NaN, the official documentation recommends using _.isFinite instead.

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Fix make _.isNumber(NaN) return false and update tests Rishiyaduwanshi/lodash
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@Taylorzhao @frontman-git
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