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Comments

Users can place comments anywhere in the script. Comments by placing a /* at the start and a */ at the end.Example: /* This is the proper structure for a comment are not evaluated, but can be used for documentation or temporarily disabling blocks of code.

JavaScript supports two types of comments:

  • Single-line comments start with // and end when the line ends.

  • Block comments start with /* and end with */. These can extend across multiple lines, or be used within a single line.

Example:

Code Block
// This is a single-line comment
/* This is a
 * multi-line
 * comment.*/

Declaring Variables

Item

Description

Variable Declaration

Declare internal variables using the following format:

var variable_name;

The initial value of declared numerical variables is 0. To declare more than one variable, use a comma , between variables:

var variable_name_1, variable_name_2, ... , variable_name_n;

Users can use multiple var keywords before the program part starts.

Users can also define an initial value for the variable when declaring it using the following format:

var variable_name = 1;

Program Part

An example of a most basic statement is the function call, calculation, and storing of the result.

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