4D v18
collection.countValues( )
- 4D Language Reference
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- Collections
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- About collections
- Type conversions between collections and 4D arrays
- collection.length
- collection.push( )
- collection.insert( )
- collection.countValues( )
- collection.remove( )
- collection.clear( )
- collection.sort( )
- collection.sum( )
- collection.average( )
- collection.pop( )
- collection.indexOf( )
- collection.find( )
- collection.filter( )
- collection.count( )
- collection.min( )
- collection.max( )
- collection.copy( )
- collection.query( )
- collection.shift( )
- collection.unshift( )
- collection.join( )
- collection.orderBy( )
- collection.orderByMethod( )
- collection.extract( )
- collection.indices( )
- collection.concat( )
- collection.combine( )
- collection.reverse( )
- collection.map( )
- collection.every( )
- collection.some( )
- collection.findIndex( )
- collection.lastIndexOf( )
- collection.resize( )
- collection.fill( )
- collection.slice( )
- collection.distinct( )
- collection.equal( )
- collection.reduce( )
- ARRAY TO COLLECTION
- COLLECTION TO ARRAY
- New collection
- New shared collection
4D v18
collection.countValues( )
collection.countValues( )
The collection.countValues( ) method returns the number of times value is found in the collection.
You can pass in value:
- a scalar value (text, number, boolean, date),
- an object or a collection reference.
For an element to be found, the type of value must be equivalent to the type of the element; the method uses the equality operator.
The optional propertyPath parameter allows you to count values inside a collection of objects: pass in propertyPath the path of the property whose values you want to count.
Note: This method does not modify the original collection.
C_COLLECTION($col)
C_LONGINT($vCount)
$col:=New collection(1;2;5;5;5;3;6;4)
$vCount:=$col.countValues(5) // $vCount=3 C_COLLECTION($col)
C_LONGINT($vCount)
$col:=New collection
$col.push(New object("name";"Smith";"age";5))
$col.push(New object("name";"Wesson";"age";2))
$col.push(New object("name";"Jones";"age";3))
$col.push(New object("name";"Henry";"age";4))
$col.push(New object("name";"Gross";"age";5))
$vCount:=$col.countValues(5;"age") //$vCount=2 C_COLLECTION($numbers)
C_COLLECTION($letters)
C_LONGINT($vCount)
$letters:=New collection("a";"b";"c")
$numbers:=New collection(1;2;$letters;3;4;5)
$vCount:=$numbers.countValues($letters) //$vCount=1
PROPERTIES
Product: 4D
Theme: Collections
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4D Language Reference ( 4D v18)
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