Loop structures: Difference between revisions
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(Old example was silly and misleading: iterated over a size-1 array containing the range 0..4, instead of iterating over the range 0..4) |
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==[[Smalltalk]]== |
==[[Smalltalk]]== |
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[[Category:Smalltalk]] |
[[Category:Smalltalk]] |
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===timesRepeat=== |
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10 timesRepeat: [ expression ]. |
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===iterating over a collection=== |
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( collection ) do: [ expression ]. |
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( collection ) collect: [:element | element sendMessageToElement]. |
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#(1 2 3 4) inject: 5 into: [:sum :number | sum + number] |
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===whileTrue/whileFalse=== |
===whileTrue/whileFalse=== |
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[ x = 0 ] |
[ x = 0 ] |
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whileFalse: [ x := x - 20.]. |
whileFalse: [ x := x - 20.]. |
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===simple looping=== |
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1 to: 5 do: [:number | Transcript show: 'Here is a number: ' number printString ; cr] |
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(-50 to: 50 by: 4) do: [:number | Transcript show: number ; cr] |
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==[[Tcl]]== |
==[[Tcl]]== |
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