Built-in Objects | Object-Oriented JavaScript

String

The String() constructor creates string objects. Primitive strings are turned into objects behind the scenes if you call a method on them as if they were objects.

Creating a string object and a string primitive:

>>> var s_obj = new String('something'); 
>>> var s_prim = 'something';
>>> typeof s_obj

"object"

>>> typeof s_prim

"string"

The object and the primitive are not equal when compared by type with ===:

>>> s_obj === s_prim

false

>>> s_obj == s_prim

true

length is a property of string objects:

>>> s_obj.length

If you access length on a non-object but a primitive string, the primitive is converted to an object behind the scenes and the operation is successful:

>>> "something".length

Members of the String Constructor

Property/Method	Description
`String.fromCharCode (code1, code2, code3, ...)`	Returns a string created using the input character codes: >&gt...

Property/Method

Description

String.fromCharCode (code1, code2, code3, ...)

Returns a string created using the input character codes:

>&gt...

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Object-Oriented JavaScript

Object-Oriented JavaScript

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String

Members of the String Constructor

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