The toFixed() method formats a number using fixed-point notation.

JavaScript Method Number Prototype

The Number.toInteger() method used to evaluate the passed value and convert it to an integer, but its implementation has been removed.

JavaScript Method Number Obsolete

The toPrecision() method returns a string representing the Number object to the specified precision.

JavaScript Method Number Prototype

The toSource() method returns a string representing the source code of the object.

JavaScript Method Number Prototype

The toString() method returns a string representing the specified Number object.

JavaScript Method Number Prototype

The valueOf() method returns the wrapped primitive value of a Number object.

JavaScript Method Number Prototype

The Intl.NumberFormat object is a constructor for objects that enable language sensitive number formatting.

Internationalization JavaScript NumberFormat

The Intl.NumberFormat.supportedLocalesOf() method returns an array containing those of the provided locales that are supported in number formatting without having to fall back to the runtime's default locale.

Internationalization JavaScript Method NumberFormat

The Object constructor creates an object wrapper.

Constructor JavaScript Object

Returns a reference to the Object function that created the instance's prototype. Note that the value of this property is a reference to the function itself, not a string containing the function's name. The value is only read-only for primitive values such as 1, true and "test".

JavaScript Object Property Prototype

The Object.defineProperties() method defines new or modifies existing properties directly on an object, returning the object.

ECMAScript5 JavaScript Method Object

This page provides additional examples for Object.defineProperty().

Examples JavaScript Object

The Object.eval() method used to evaluate a string of JavaScript code in the context of an object, however, this method has been removed.

JavaScript Method Object Obsolete

The Object.freeze() method freezes an object: that is, prevents new properties from being added to it; prevents existing properties from being removed; and prevents existing properties, or their enumerability, configurability, or writability, from being changed. In essence the object is made effectively immutable. The method returns the object being frozen.

ECMAScript5 JavaScript Method Object

The Object.getNotifer() method was used to create an object that allows to synthetically trigger a change, but has been deprecated and removed in browsers.

JavaScript Method Object Obsolete

The Object.getOwnPropertyDescriptor() method returns a property descriptor for an own property (that is, one directly present on an object and not in the object's prototype chain) of a given object.

ECMAScript5 JavaScript Method Object

The Object.getOwnPropertyDescriptors() method returns all own property descriptors of a given object.

JavaScript Method Object

The Object.getOwnPropertySymbols() method returns an array of all symbol properties found directly upon a given object.

ECMAScript6 JavaScript Method Object

The Object.getPrototypeOf() method returns the prototype (i.e. the value of the internal [[Prototype]] property) of the specified object.

ECMAScript5 JavaScript Method Object

The hasOwnProperty() method returns a boolean indicating whether the object has the specified property.

JavaScript Method Object Prototype