Javascript-type conversion and javascript Conversion

Javascript-type conversion and javascript Conversion

JavaScript is a non-type language, but JavaScript also provides a flexible way to handle Automatic type conversion. The basic rule is that if a value of a type is used in an environment that requires a value of another type, JavaScript automatically converts the value to the required type.

A specific type of JavaScript is listed below for the conversion performed in a specific environment.

Type conversion

Value string numeric Boolean Value Object

"Undefined" NaN false Error Not Defined

Null "null" 0 false Error

Non-null String As is String numeric value or NaN true String object

Empty String As is 0 false String object

0 "0" As is false Number object

NaN "NaN" As is false Number object

Infinity "Infinity" As is true Number object

Negative Infinity "-Infinity" As is true Number object

The string value of all other numeric numbers is an Asis true Number object.

True "true" 1 As is Boolean object

False "false" 0 As is Boolean object

Object toString () valueOf (), toString (), or NaN true As is