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Object Range

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mussawir20
mussawir20

ObjectRange represents an interval of values that have a valid strict weak ordering. It mixes in Enumerable, making ranges versatile. The preferred way to obtain a range is to use the $R utility function. ObjectRange overrides the default include method, allowing it to use a maximum of two comparisons to determine if a value is included in the range.

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Module ObjectRange
ObjectRange Ranges represent an interval of values. The value type just needs to be “compatible,” include(value) -> Boolean Determines whether the value is included in the range This assumes the values in the range have a valid strict weak ordering (have valid semantics for the < operator). ObjectRange mixes in Enumerable, which makes ranges very versatile. ObjectRange does provide a constructor, the preferred way to obtain a range is to use the $R utility function, This method overrides the default version of include, and is way more efficient it uses a maximum of two comparisons
ObjectRange Examples; 1)$A($R( 1 ,  5 )).join( ', ' )    // -> '1, 2, 3, 4, 5' 2) 2) $R( 1 ,  5 ).zip([ 'one' ,  'two' ,  'three' ,  'four' ,  'five' ],  function (tuple) {  return  tuple.join( ' = ' ); })   // > ['1 = one', '2 = two', '3 = three', '4 = four',  '5 = five'] 3)$A($R( 'a' ,  'e' ))    // -> ['a', 'b', 'c', 'd', 'e'], no surprise there    
ObjectRange Examples; 1)$R( 1 ,  10 ).include( 5 ) // -> true 2)$R( 'a' ,  'h' ).include( 'x' ) // -> false 3)$R( 1 ,  10 ).include( 10 ) // -> true 4)$R( 1 ,  10 ,  true ).include( 10 ) // -> false

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Object Range

  • 2. ObjectRange Ranges represent an interval of values. The value type just needs to be “compatible,” include(value) -> Boolean Determines whether the value is included in the range This assumes the values in the range have a valid strict weak ordering (have valid semantics for the < operator). ObjectRange mixes in Enumerable, which makes ranges very versatile. ObjectRange does provide a constructor, the preferred way to obtain a range is to use the $R utility function, This method overrides the default version of include, and is way more efficient it uses a maximum of two comparisons
  • 3. ObjectRange Examples; 1)$A($R( 1 ,  5 )).join( ', ' )    // -> '1, 2, 3, 4, 5' 2) 2) $R( 1 ,  5 ).zip([ 'one' ,  'two' ,  'three' ,  'four' ,  'five' ],  function (tuple) {  return  tuple.join( ' = ' ); })   // > ['1 = one', '2 = two', '3 = three', '4 = four',  '5 = five'] 3)$A($R( 'a' ,  'e' ))    // -> ['a', 'b', 'c', 'd', 'e'], no surprise there    
  • 4. ObjectRange Examples; 1)$R( 1 ,  10 ).include( 5 ) // -> true 2)$R( 'a' ,  'h' ).include( 'x' ) // -> false 3)$R( 1 ,  10 ).include( 10 ) // -> true 4)$R( 1 ,  10 ,  true ).include( 10 ) // -> false