java script data type.

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One of the most fundamental characteristics of a programming language is the set of data types it supports. These are the type of values that can be represented and manipulated in a programming language.

JavaScript allows you to work with three primitive data types:
  •  Numbers, e.g., 123, 120.50 etc
  •  Strings of text, e.g. "This text string" etc.
  •  Boolean, e.g. true or false.
JavaScript also defines two trivial data types, null and undefined, each of which defines only a single value. In addition to these primitive data types, JavaScript supports a composite data type known as object. We will cover objects in detail in a separate chapter. 

Note: Java does not make a distinction between integer values and floating-point values. All numbers in JavaScript are represented as floating-point values.

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