Difference between revisions of "Table.clear"
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(Created page with "__NOTOC__ '''Available since:''' Gideros 2022.3<br/> '''Class:''' table<br/> === Description === Sets the value for all keys within the given table to nil. This causes th...") |
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=== Description === | === Description === | ||
Sets the value for all keys within the given table to nil. This causes the # operator to return 0 for the given table. The allocated capacity of the table's array portion is maintained, which allows for efficient re-use of the space. | Sets the value for all keys within the given table to nil. This causes the # operator to return 0 for the given table. The allocated capacity of the table's array portion is maintained, which allows for efficient re-use of the space. | ||
| − | < | + | <syntaxhighlight lang="lua"> |
table.clear(t) | table.clear(t) | ||
</source> | </source> | ||
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=== Example === | === Example === | ||
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local grades = {95, 82, 71, 92, 100, 60} | local grades = {95, 82, 71, 92, 100, 60} | ||
print(grades[4], #grades) --> 92, 6 | print(grades[4], #grades) --> 92, 6 | ||
Revision as of 14:31, 13 July 2023
Available since: Gideros 2022.3
Class: table
Description
Sets the value for all keys within the given table to nil. This causes the # operator to return 0 for the given table. The allocated capacity of the table's array portion is maintained, which allows for efficient re-use of the space. <syntaxhighlight lang="lua"> table.clear(t) </source>
This function does not delete/destroy the table provided to it. This function is meant to be used specifically for tables that are to be re-used
Parameters
t: (table) table to clear
Example
<syntaxhighlight lang="lua"> local grades = {95, 82, 71, 92, 100, 60} print(grades[4], #grades) --> 92, 6 table.clear(grades) print(grades[4], #grades) --> nil, 0 -- If grades is filled again with the same number of entries, -- no potentially expensive array resizing will occur -- because the capacity was maintained by table.clear. </source>
