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GeezerVison is showing github.com — util: move util.isError to eol · nodejs/node@dc37962

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  • doc/api
    • deprecations.md
    • util.md
  • lib
    • util.js
  • test/parallel
    • test-util.js
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‎doc/api/deprecations.md‎

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+5-4Lines changed: 5 additions & 4 deletions
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@@ -1077,6 +1077,9 @@ The `util.isDate()` API has been removed. Please use
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<!-- YAML
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changes:
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- version: REPLACEME
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pr-url: https://github.com/nodejs/node/pull/52744
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description: End-of-Life deprecation.
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- version: v22.0.0
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pr-url: https://github.com/nodejs/node/pull/50488
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description: Runtime deprecation.
@@ -1092,9 +1095,9 @@ changes:
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description: Documentation-only deprecation.
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-->
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Type: Runtime
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Type: End-of-Life
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The [`util.isError()`][] API is deprecated. Please use
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The `util.isError()` API has been removed. Please use
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`Object.prototype.toString(arg) === '[object Error]' || arg instanceof Error`
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instead.
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@@ -3809,8 +3812,6 @@ is deprecated to better align with recommendations per [NIST SP 800-38D][].
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[`util.inspect()`]: util.md#utilinspectobject-options
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[`util.inspect.custom`]: util.md#utilinspectcustom
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[`util.isArray()`]: util.md#utilisarrayobject
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[`util.isError()`]: util.md#utiliserrorobject
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[`util.isFunction()`]: util.md#utilisfunctionobject
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[`util.isPrimitive()`]: util.md#utilisprimitiveobject
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[`util.log()`]: util.md#utillogstring
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[`util.promisify`]: util.md#utilpromisifyoriginal
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‎doc/api/util.md‎

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-43Lines changed: 0 additions & 43 deletions
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@@ -2950,47 +2950,6 @@ util.isArray({});
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// Returns: false
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```
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### `util.isError(object)`
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<!-- YAML
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added: v0.6.0
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deprecated: v4.0.0
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-->
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> Stability: 0 - Deprecated: Use [`util.types.isNativeError()`][] instead.
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* `object` {any}
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* Returns: {boolean}
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Returns `true` if the given `object` is an [`Error`][]. Otherwise, returns
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`false`.
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```js
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const util = require('node:util');
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util.isError(new Error());
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// Returns: true
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util.isError(new TypeError());
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// Returns: true
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util.isError({ name: 'Error', message: 'an error occurred' });
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// Returns: false
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```
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This method relies on `Object.prototype.toString()` behavior. It is
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possible to obtain an incorrect result when the `object` argument manipulates
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`@@toStringTag`.
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```js
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const util = require('node:util');
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const obj = { name: 'Error', message: 'an error occurred' };
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util.isError(obj);
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// Returns: false
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obj[Symbol.toStringTag] = 'Error';
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util.isError(obj);
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// Returns: true
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```
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### `util.isFunction(object)`
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<!-- YAML
@@ -3094,7 +3053,6 @@ util.log('Timestamped message.');
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[`ArrayBuffer`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer
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[`DataView`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView
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[`Date`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
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[`Error`]: errors.md#class-error
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[`Float32Array`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float32Array
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[`Float64Array`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float64Array
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[`Int16Array`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Int16Array
@@ -3127,7 +3085,6 @@ util.log('Timestamped message.');
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[`util.promisify()`]: #utilpromisifyoriginal
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[`util.types.isAnyArrayBuffer()`]: #utiltypesisanyarraybuffervalue
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[`util.types.isArrayBuffer()`]: #utiltypesisarraybuffervalue
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[`util.types.isNativeError()`]: #utiltypesisnativeerrorvalue
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[`util.types.isSharedArrayBuffer()`]: #utiltypesissharedarraybuffervalue
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[async function]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/async_function
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[built-in `Error` type]: https://tc39.es/ecma262/#sec-error-objects
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‎lib/util.js‎

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@@ -39,7 +39,6 @@ const {
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ObjectDefineProperty,
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ObjectGetOwnPropertyDescriptors,
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ObjectKeys,
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ObjectPrototypeToString,
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ObjectSetPrototypeOf,
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ObjectValues,
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ReflectApply,
@@ -90,15 +89,6 @@ function lazyAbortController() {
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let internalDeepEqual;
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/**
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* @deprecated since v4.0.0
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* @param {any} e
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* @returns {arg is Error}
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*/
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function isError(e) {
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return ObjectPrototypeToString(e) === '[object Error]' || e instanceof Error;
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}
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/**
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* @deprecated since v4.0.0
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* @param {any} arg
@@ -354,11 +344,6 @@ module.exports = {
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}
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return internalDeepEqual(a, b);
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},
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isError: deprecate(isError,
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'The `util.isError` API is deprecated. ' +
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'Please use `ObjectPrototypeToString(e) === "[object Error]" ' +
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'|| e instanceof Error` instead.',
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'DEP0048'),
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isFunction: deprecate(isFunction,
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'The `util.isFunction` API is deprecated. Please use `typeof arg === "function"` instead.',
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'DEP0049'),
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‎test/parallel/test-util.js‎

Copy file name to clipboardExpand all lines: test/parallel/test-util.js
-14Lines changed: 0 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -40,18 +40,6 @@ assert.strictEqual(util.isArray(/regexp/), false);
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assert.strictEqual(util.isArray(new Error()), false);
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assert.strictEqual(util.isArray({ __proto__: Array.prototype }), false);
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43-
// isError
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assert.strictEqual(util.isError(new Error()), true);
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assert.strictEqual(util.isError(new TypeError()), true);
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assert.strictEqual(util.isError(new SyntaxError()), true);
47-
assert.strictEqual(util.isError(new (context('Error'))()), true);
48-
assert.strictEqual(util.isError(new (context('TypeError'))()), true);
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assert.strictEqual(util.isError(new (context('SyntaxError'))()), true);
50-
assert.strictEqual(util.isError({}), false);
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assert.strictEqual(util.isError({ name: 'Error', message: '' }), false);
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assert.strictEqual(util.isError([]), false);
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assert.strictEqual(util.isError({ __proto__: Error.prototype }), true);
54-
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// isPrimitive
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assert.strictEqual(util.isPrimitive({}), false);
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assert.strictEqual(util.isPrimitive(new Error()), false);
@@ -62,8 +50,6 @@ assert.strictEqual(util.isPrimitive(function() {}), false);
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assert.strictEqual(util.isPrimitive(new Number(1)), false);
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assert.strictEqual(util.isPrimitive(new String('bla')), false);
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assert.strictEqual(util.isPrimitive(new Boolean(true)), false);
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assert.strictEqual(util.isPrimitive(1), true);
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assert.strictEqual(util.isPrimitive('bla'), true);
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assert.strictEqual(util.isPrimitive(true), true);
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assert.strictEqual(util.isPrimitive(undefined), true);
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assert.strictEqual(util.isPrimitive(null), true);

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