This is the legacy 4D documentation web site. Documentations are progressively being moved to developer.4d.com
- 4D Language Reference
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- Arrays
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Arrays
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Creating Arrays
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Arrays and Form Objects
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Arrays and the 4D Language
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Arrays and Pointers
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Using the element zero of an array
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Two-dimensional Arrays
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Arrays and Memory
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APPEND TO ARRAY
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ARRAY BLOB
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ARRAY BOOLEAN
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ARRAY DATE
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ARRAY INTEGER
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ARRAY LONGINT
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ARRAY OBJECT
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ARRAY PICTURE
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ARRAY POINTER
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ARRAY REAL
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ARRAY TEXT
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ARRAY TIME
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ARRAY TO LIST
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ARRAY TO SELECTION
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BOOLEAN ARRAY FROM SET
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COPY ARRAY
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Count in array
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DELETE FROM ARRAY
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DISTINCT ATTRIBUTE PATHS
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DISTINCT ATTRIBUTE VALUES
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DISTINCT VALUES
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Find in array
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Find in sorted array
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INSERT IN ARRAY
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LIST TO ARRAY
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LONGINT ARRAY FROM SELECTION
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MULTI SORT ARRAY
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SELECTION RANGE TO ARRAY
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SELECTION TO ARRAY
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Size of array
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SORT ARRAY
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TEXT TO ARRAY
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Count in array
| Count in array ( array ; value ) -> Function result | ||||||||
| Parameter | Type | Description | ||||||
| array | Array |
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Array where count should occur | |||||
| value | Expression |
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Value to count | |||||
| Function result | Longint |
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Number of instances found | |||||
The Count in array command returns the number of times value is found in array.
This command can be used with the following array types: Text, Alpha, number, Date, Pointer and Boolean. The array and value parameters must be the same type or compatible.
If no element in array matches value, the command returns 0.
The following example allows displaying the number of selected lines in a list box:
//tBList is the name of a List box column array
ALERT(String(Count in array(tBList;True))+" line(s) selected in the list box")
Product: 4D
Theme: Arrays
Number:
907
Created: 4D 2004
4D Language Reference ( 4D v20)
4D Language Reference ( 4D v20.1)
4D Language Reference ( 4D v20.2)
4D Language Reference ( 4D v20.3)
4D Language Reference ( 4D v20.4)
4D Language Reference ( 4D v20.5)
4D Language Reference ( 4D v20.6)
