Implicit string conversion (version: 0)

Literals, such as strings, numbers, and boolean values, have two representations within ECMAScript. Each of them can be created as either a value or an object. For example, a string value is created simply by saying var oString = 'some content';, while an equivalent string object is created by saying var oString = new String('some content');. Any properties and methods are defined on the string object, not the value. When you reference a property or method of a string value, the ECMAScript engine must implicitly create a new string object with the same value as your string, before running the method. This object is only used for that one request, and will be recreated next time you attempt to use a method of the string value.

Comparing performance of: Accessing string as value vs Accessing string as object

Created: 3 years ago by: Guest

Jump to the latest result