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doc: update deprecation guide for util.is**() #59269

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Merged
merged 6 commits into from
Aug 28, 2025
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doc: update deprecation guide for util.is**() #59269

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8a8af47
doc: update deprecation guide for `util.is**()`
AugustinMauroy Jul 29, 2025
fa06eeb
fix: null & undifined
AugustinMauroy Jul 29, 2025
2e80adf
better handling
AugustinMauroy Jul 29, 2025
fd126f5
Merge branch 'fix-utils-is' of https://github.com/AugustinMauroy/node…
AugustinMauroy Jul 29, 2025
19adb3d
fix lint
AugustinMauroy Jul 29, 2025
1175038
revert useless change
AugustinMauroy Aug 27, 2025
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6 changes: 2 additions & 4 deletions doc/api/deprecations.md
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Expand Up @@ -1109,9 +1109,7 @@ changes:

Type: End-of-Life

The `util.isError()` API has been removed. Please use
`Object.prototype.toString(arg) === '[object Error]' || arg instanceof Error`
instead.
The `util.isError()` API has been removed. Please use `Error.isError(arg)`.

### DEP0049: `util.isFunction()`

Expand Down Expand Up @@ -1192,7 +1190,7 @@ changes:
Type: End-of-Life

The `util.isNullOrUndefined()` API has been removed. Please use
`arg === null || arg === undefined` instead.
`arg === null` instead.

### DEP0052: `util.isNumber()`

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