TypeError - JavaScript | MDN
Constructor
TypeError()-
Creates a new
TypeErrorobject.
Instance properties
Also inherits instance properties from its parent Error.
These properties are defined on TypeError.prototype and shared by all TypeError instances.
TypeError.prototype.constructor-
The constructor function that created the instance object. For
TypeErrorinstances, the initial value is theTypeErrorconstructor. TypeError.prototype.name-
Represents the name for the type of error. For
TypeError.prototype.name, the initial value is"TypeError".
Instance methods
Inherits instance methods from its parent Error.
Examples
Catching a TypeError
js
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
}
Creating a TypeError
js
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
}
Specifications
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-native-error-types-used-in-this-standard-typeerror |