4D v19
collection.indices( )
- 4D Language Reference
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- Collections
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- About collections
- Type conversions between collections and 4D arrays
- collection.length
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- collection.join( )
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- collection.orderByMethod( )
- collection.extract( )
- collection.indices( )
- collection.concat( )
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- collection.reverse( )
- collection.map( )
- collection.every( )
- collection.some( )
- collection.findIndex( )
- collection.lastIndexOf( )
- collection.resize( )
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- collection.slice( )
- collection.distinct( )
- collection.equal( )
- collection.reduce( )
- ARRAY TO COLLECTION
- COLLECTION TO ARRAY
- New collection
- New shared collection
4D v19
collection.indices( )
collection.indices( )
The collection.indices( ) method works exactly the same as the collection.query( ) method but returns indexes, in the original collection, of object collection elements that match the queryString search conditions, and not elements themselves. Indexes are returned in ascending order.
Note: This method does not modify the original collection.
The queryString parameter uses the following syntax:
propertyPath comparator value {logicalOperator propertyPath comparator value}For a detailed description of the queryString and value parameters, please refer to the dataClass.query( ) method.
C_COLLECTION($c)
$c:=New collection
$c.push(New object("name";"Cleveland";"zc";35049))
$c.push(New object("name";"Blountsville";"zc";35031))
$c.push(New object("name";"Adger";"zc";35006))
$c.push(New object("name";"Clanton";"zc";35046))
$c.push(New object("name";"Clanton";"zc";35045))
$icol:=$c.indices("name = :1";"Cleveland") // $icol=[0]
$icol:=$c.indices("zc > 35040") // $icol=[0,3,4]
See also
PROPERTIES
Product: 4D
Theme: Collections
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HISTORY
ARTICLE USAGE
4D Language Reference ( 4D v19)
4D Language Reference ( 4D v19.1)
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