Best practices

Variables

• 1.Always declare an variable with the var keyword explicitly

  • Variable name can be

    • letters: case sensitive
    • numbers
    • symbols $ and _

  • Use camelCase for mutable variables: multi-word variable names have the first word in lowercase and the first letter of each subsequent word is capitalized

    var anOrdinaryMan
    

• 2. Use const keywor to name variables you don’t want to reassign
  • Use all uppercase letters for immutable variables, with words separated by an underscore.

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