Identifier Rules

 IDENTIFIER: ALL JS VARIABLES MUST BE IDENTIFIED WITH UNIQUE NAMES(IDENTIFIERS).


-CAN CONTAIN LETTERS,DIGITS ,UNDERSCORES AND DOLLAR SIGNS

- NO SPACE

- NAMES MUST BEGIN WITH A LETTER

- NAMES CAN ALSO BEGIN WITH _ OR $.

- NAMES ARE CASE-SENSITIVE

-RESERVED WORDS LIKE JS KEYWORDS CANNOT BE USED AS NAMES



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