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- 4D Language Reference
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- Collections
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About collections
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Type conversions between collections and 4D arrays
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collection.length
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collection.average( )
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collection.clear( )
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collection.combine( )
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collection.concat( )
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collection.copy( )
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collection.count( )
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collection.countValues( )
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collection.distinct( )
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collection.equal( )
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collection.every( )
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collection.extract( )
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collection.fill( )
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collection.filter( )
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collection.find( )
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collection.findIndex( )
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collection.indexOf( )
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collection.indices( )
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collection.insert( )
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collection.join( )
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collection.lastIndexOf( )
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collection.map( )
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collection.max( )
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collection.min( )
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collection.orderBy( )
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collection.orderByMethod( )
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collection.pop( )
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collection.push( )
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collection.query( )
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collection.reduce( )
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collection.remove( )
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collection.resize( )
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collection.reverse( )
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collection.shift( )
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collection.slice( )
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collection.some( )
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collection.sort( )
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collection.sum( )
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collection.unshift( )
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ARRAY TO COLLECTION
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COLLECTION TO ARRAY
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New collection
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New shared collection
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collection.equal( )
| collection.equal ( collection2 {; option} ) -> Function result | ||||||||
| Parameter | Type | Description | ||||||
| collection2 | Collection |
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Collection to compare | |||||
| option | Longint |
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ck diacritical: diacritical evaluation ("A" # "a" for example) | |||||
| Function result | Boolean |
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True if collections are identical, false otherwise | |||||
The collection.equal( ) method compares the collection with collection2 and returns true if they are identical (deep comparison).
By default, a non-diacritical evaluation is performed. If you want the evaluation to be case sensitive or to differentiate accented characters, pass the ck diacritical constant in the option parameter.
Note: Elements with Null values are not equal to Undefined elements.
C_COLLECTION($c;$c2)
C_BOOLEAN($b)
$c:=New collection(New object("a";1;"b";"orange");2;3)
$c2:=New collection(New object("a";1;"b";"orange");2;3;4)
$b:=$c.equal($c2) // false
$c:=New collection(New object("1";"a";"b";"orange");2;3)
$c2:=New collection(New object("a";1;"b";"orange");2;3)
$b:=$c.equal($c2) // false
$c:=New collection(New object("a";1;"b";"orange");2;3)
$c2:=New collection(New object("a";1;"b";"ORange");2;3)
$b:=$c.equal($c2) // true
$c:=New collection(New object("a";1;"b";"orange");2;3)
$c2:=New collection(New object("a";1;"b";"ORange");2;3)
$b:=$c.equal($c2;ck diacritical) //false
Product: 4D
Theme: Collections
Number:
805261
Created: 4D v16 R6
4D Language Reference ( 4D v19)
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