square brackets

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[ ]

The left square bracket [ is defined in ASCII as having the value is 91 (hexadecimal $5B). In Pascal it always appears in conjunction with a corresponding right square bracket ] is defined in ASCII as having the value is 93 (hexadecimal $5D) constituting a pair.

Such a pair is used to:

• Static array the type definition
• Accessing array Elements. An element is accessed by indexing the array name. This is done by placing the index or variable's identifier of the element within square brackets after the name of the array.
• Define an empty set : someset := [];
• Using brackets to hold set elements
• Custom Attributes