Loops/Increment loop index within loop body: Difference between revisions
Loops/Increment loop index within loop body (view source)
Revision as of 08:25, 29 September 2023
, 8 months ago→With indexed loop word: Change of heart re behaviours of incr and end
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[ f.index share ] is index ( --> n )
[
[
[ 1 false ]'[
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<code>index</code> returns the current index.
The default increment is <code>1</code>, but this can be overridden for a single iteration by the word <code>incr</code> within the nest being performed by <code>from</code>. <code>incr</code> takes a number from the stack, and sets the
The task states "''in addition to the normal incrementation''" but this is counter-intuitive. To make the loop task compliant you will need to precede <code>f.incr</code> with <code>1+</code> in <code>incr</code>. You will also need to delete the <code>1+</code> before <code>incr</code> in the task code below.
The word <code>end</code> sets the ending condition to <code>true</code>, so the loop will end at the end of the current iteration. ▼
▲The word <code>end</code> sets the ending condition to
As with other iterative looping words in Quackery (e.g. <code>times</code>, <code>witheach</code>, etc.) the word <code>done</code> will terminate the current iteration immediately.
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say ": "
index echo, cr
index 1+ incr ]
dup 42 =
drop</syntaxhighlight>
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