| bigints.js |
---
esid: sec-error.iserror
description: >
Returns false on bigints
features: [Error.isError, BigInt]
--- |
624 |
| browser.js |
|
0 |
| error-subclass.js |
---
esid: sec-error.iserror
description: >
Returns true on userland Error subclasses
features: [Error.isError, class]
--- |
1473 |
| errors-other-realm.js |
---
esid: sec-error.iserror
description: >
Returns true on Error and Error subclass instances from a different realm
features: [Error.isError, cross-realm]
--- |
1200 |
| errors.js |
---
esid: sec-error.iserror
description: >
Returns true on Error and Error subclass instances
features: [Error.isError]
--- |
1070 |
| fake-errors.js |
---
esid: sec-error.iserror
description: >
Returns false on non-Error objects pretending to be an Error
features: [Error.isError]
--- |
751 |
| is-a-constructor.js |
---
esid: sec-error.iserror
description: >
Error.isError does not implement [[Construct]]
info: |
IsConstructor ( argument )
The abstract operation IsConstructor takes argument argument (an ECMAScript language value).
It determines if argument is a function object with a [[Construct]] internal method.
It performs the following steps when called:
If Type(argument) is not Object, return false.
If argument has a [[Construct]] internal method, return true.
Return false.
includes: [isConstructor.js]
features: [Error.isError, Reflect.construct]
--- |
1060 |
| name.js |
---
esid: sec-error.iserror
description: >
The initial value of Error.isError.name is "isError".
features: [Error.isError]
--- |
503 |
| non-error-objects-other-realm.js |
---
esid: sec-error.iserror
description: >
Returns false on non-Error objects from a different realm
features: [Error.isError, cross-realm]
--- |
1396 |
| non-error-objects.js |
---
esid: sec-error.iserror
description: >
Returns false on non-Error objects
features: [Error.isError]
--- |
1198 |
| primitives.js |
---
esid: sec-error.iserror
description: >
Returns false on primitives
features: [Error.isError]
--- |
1027 |
| prop-desc.js |
---
esid: sec-error.iserror
description: Property descriptor for Error.isError
info: |
Every other data property described in clauses 18 through 26 and in Annex B.2
has the attributes { [[Writable]]: true, [[Enumerable]]: false,
[[Configurable]]: true } unless otherwise specified.
includes: [propertyHelper.js]
features: [Error.isError]
--- |
770 |
| shell.js |
|
0 |
| symbols.js |
---
esid: sec-error.iserror
description: >
Returns false on symbols
features: [Error.isError, Symbol]
--- |
482 |