CLEAR

The CLEAR statement clears all variable and array element values in a program.

Syntax

CLEAR [, ignored& , ignored&]

Description

• All parameters are optional and ignored by QB64.
• Normally used to clear all program variable and array values where numerical values become zero and string values become empty ("").
• It does not clear constant values.
• Closes all opened files.
• $DYNAMIC or REDIM arrays will need to be redimensioned or an error will occur when referenced because they are removed.

Examples

Example: Using CLEAR to clear array elements from static arrays or arrays created using DIM.

CLS DIM array(10) 'create a $STATIC array array(5) = 23 PRINT array(5) CLEAR PRINT array(5)

Note: If you change DIM to REDIM a "Subscript out of range" error will occur because a $DYNAMIC array is removed by CLEAR.

See also

• Featured in our "Keyword of the Day" series
• ERASE
• REDIM, _PRESERVE
• Arrays, _BIT arrays

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