JavaScript

Tips to write a script for a web page:

• It is best to keep JavaScript code in its own Javascript file
• Using <\script> to load the JavaScript file, <\link> is for a CSS file
• Writing comments to explain your code
• Declaring the variable before using it
• There are three types of variables:
  • Numeric data type
  • String data type
  • Boolean data type

Rules for naming variables:

• The name must begin with a letter, dolar sign, or an underscore, it must not not start with a number
• The name can contain letters, numbers, dollar sign, or an underscore, but must not use a dash or a period
• Cannot use keywords or reserved words, like var
• All variables are case sensitive
• Use a name that describes the kind of information that the variable stores
• Use a capital letter for the first letter of every word after the first word, if the variable name is made up of more than one word

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