Difference between revisions of "Remove First Assignment"
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| Line 5: | Line 5: | ||
raise NotYetImplemented</nowiki> | raise NotYetImplemented</nowiki> | ||
| − | Remove the first item which matches <code>target</code> if it exists. For example, <code>remove_first([1,2,3,4,5], 3)</code> should return the list [1,2,4,5]. | + | Remove the first item which matches <code>target</code> if it exists. For example, <code>remove_first([1,2,3,4,5], 3)</code> should return the list <code>[1,2,4,5]</code>. |
| − | If the target does not exist, return the complete list. For example, <code>remove_first([1,2,3,4,5], 6)</code> should return the list [1,2,3,4,5]. | + | If the target does not exist, return the complete list. For example, <code>remove_first([1,2,3,4,5], 6)</code> should return the list <code>[1,2,3,4,5]</code>. |
=Test= | =Test= | ||
{{SMLUnitTest|remove_first|warmup_remove_first}} | {{SMLUnitTest|remove_first|warmup_remove_first}} | ||
Revision as of 05:14, 15 October 2020
Code to Implement
| file: | src/main/sml/warm_up_remove_first/remove_first.sml |  |
| functions: | remove_first |
remove_first
fun remove_first(xs : ''a list, target : ''a) : ''a list =
raise NotYetImplemented
Remove the first item which matches target if it exists. For example, remove_first([1,2,3,4,5], 3) should return the list [1,2,4,5].
If the target does not exist, return the complete list. For example, remove_first([1,2,3,4,5], 6) should return the list [1,2,3,4,5].
Test
| file: | unit_test_remove_first.sml | |
| source folder: | src/test/sml/warmup_remove_first |
