The TypeError()
constructor creates TypeError
objects.
The TypeError()
constructor creates TypeError
objects.
new TypeError() new TypeError(message) new TypeError(message, options) new TypeError(message, fileName) new TypeError(message, fileName, lineNumber) TypeError() TypeError(message) TypeError(message, options) TypeError(message, fileName) TypeError(message, fileName, lineNumber)
Note: TypeError()
can be called with or without new
. Both create a new TypeError
instance.
message
Optional
Human-readable description of the error
options
Optional
An object that has the following properties:
cause
Optional
A property indicating the specific cause of the error. When catching and re-throwing an error with a more-specific or useful error message, this property can be used to pass the original error.
fileName
Optional Non-standard
The name of the file containing the code that caused the exception
lineNumber
Optional Non-standard
The line number of the code that caused the exception
try { null.f(); } catch (e) { console.log(e instanceof TypeError); // true console.log(e.message); // "null has no properties" console.log(e.name); // "TypeError" console.log(e.stack); // Stack of the error }
try { throw new TypeError("Hello"); } catch (e) { console.log(e instanceof TypeError); // true console.log(e.message); // "Hello" console.log(e.name); // "TypeError" console.log(e.stack); // Stack of the error }
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TypeError |
1 | 12 | 1 | 5 | 1 | 18 | 4 | 10.1 | 1 | 1.0 | 4.4 | 1.0 | 0.10.0 |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError/TypeError