Declaring Variable
Declaring Variable Rule
- Variable can contain a combination of letters, digits, underscores ( _ ), and
- dollar signs ( $ ).
- Must begin with a letter A-Z or a-z or underscore or dollar sign
- A variable name cannot start with a number
- Must not contain any space characters
- JavaScript is case-sensitive
- Can‟t use reserved keywords
Declaring Variable
A variable declared without a value will have the value undefined
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