Difference between revisions of "Table.sort"

From GiderosMobile
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'''Available since:''' Gideros 2011.6<br/>
 
'''Available since:''' Gideros 2011.6<br/>
 
=== Description ===
 
=== Description ===
Sort the elements of a table in-place (i.e. alter the table).  
+
<translate>Sort the elements of a table in-place (i.e. alter the table).  
`> t = { 3,2,5,1,4 }`
+
[[[> t = { 3,2,5,1,4 }]]]
`> table.sort(t)`
+
[[[> table.sort(t)]]]
`> = table.concat(t, ", ")  -- display sorted values`
+
[[[> = table.concat(t, ", ")  -- display sorted values]]]
`1, 2, 3, 4, 5`
+
[[[1, 2, 3, 4, 5]]]
  
A comparison function can be provided to customise the element sorting. The comparison function must return a boolean value specifying whether the first argument should be before the second argument in the sequence. The default behaviour is for the < comparison to be made. For example, the following behaves the same as no function being supplied:
+
A comparison function can be provided to customise the element sorting. The comparison function must return a boolean value specifying whether the first argument should be before the second argument in the sequence. The default behaviour is for the < comparison to be made. For example, the following behaves the same as no function being supplied:</translate>
 
<source lang="lua">
 
<source lang="lua">
 
  table.sort(table,comp)
 
  table.sort(table,comp)
 
</source>
 
</source>
 
=== Parameters ===
 
=== Parameters ===
'''table''': (table) table to sort <br/>
+
'''table''': (table) <translate>table to sort</translate> <br/>
'''comp''': (function) comparison function returning bool comparison result '''optional'''<br/>
+
'''comp''': (function) <translate>comparison function returning bool comparison result</translate> '''optional'''<br/>

Revision as of 13:32, 23 August 2018

Available since: Gideros 2011.6

Description

Sort the elements of a table in-place (i.e. alter the table). [[[> t = { 3,2,5,1,4 }]]] [[[> table.sort(t)]]] [[[> = table.concat(t, ", ") -- display sorted values]]] [[[1, 2, 3, 4, 5]]]

A comparison function can be provided to customise the element sorting. The comparison function must return a boolean value specifying whether the first argument should be before the second argument in the sequence. The default behaviour is for the < comparison to be made. For example, the following behaves the same as no function being supplied:

 table.sort(table,comp)

Parameters

table: (table) table to sort
comp: (function) comparison function returning bool comparison result optional