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Move page script moved page API wipe to WoW:API wipe without leaving a redirect
(→Notes: naming a variable 'table' was just brilliant.) |
m (Move page script moved page API wipe to WoW:API wipe without leaving a redirect) |
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{{ | {{wowapi}} | ||
'''Wipes''' a table of all contents. | '''Wipes''' a table of all contents. | ||
table = table.wipe(table) | table = table.wipe(table) | ||
wipe(table) | |||
== Arguments == | == Arguments == | ||
; table : Table - The table to be cleared. | |||
== Returns == | == Returns == | ||
; table : Table - The empty table. | |||
== Example == | |||
local tab = {} | |||
tab.Hello = "Goodbye" | |||
print(tab.Hello) -- print "Goodbye" | |||
tab = table.wipe(tab) | |||
print(tab.Hello) -- print nil | |||
== Notes == | == Notes == | ||
The difference between ''wipe(table)'' and ''table={}'' is that ''wipe'' removes the contents of the table, but retains the variable's internal pointer. | * While this function returns an empty table, it is not necessary to assign it to a variable. | ||
local t = {"stuff"} | |||
t = wipe(t) | |||
print(#t) -- prints 0 | |||
local t = {"stuff"} | |||
wipe(t) | |||
print(#t) -- also prints 0 | |||
* The difference between ''wipe(table)'' and ''table={}'' is that ''wipe'' removes the contents of the table, but retains the variable's internal pointer. | |||
data={1,2,3} | data={1,2,3} | ||
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assert(#copy2==0) -- the copy is expectedly empty, | assert(#copy2==0) -- the copy is expectedly empty, | ||
assert(#data==0) -- and so is the original table. | assert(#data==0) -- and so is the original table. | ||