Identifiers in TypeScript

Identifiers are names given to elements in a program like variables, functions etc. The rules for identifiers are:
· Identifiers can include both, characters and digits. However, the identifier cannot begin with a digit.
 · Identifiers cannot include special symbols except for underscore (_) or a dollar sign ($)
. · Identifiers cannot be keywords.
· They must be unique.
· Identifiers are case-sensitive
 · Identifiers cannot contain spaces.


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