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Data Type
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Javascript Data Type
Basics
Data Types
typeof Operator
Undefined Type
typeof undefined
null
Boolean
boolean
Cast to Boolean
Int
Decimal, octal, hexadecimal integer literal
Float point
float point literal
Scientific notation
float point rounding error
float point value range
Methods
isFinite()
NaN - Not A Number
isNaN()
Number()
parseInt()
parseInt() with radix
parseFloat()
String
String
String Escape
String length
Convert to String
Object
Object
Primitive And Reference Values
instanceof
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