WoW:API foreach - Revision history

Move page script: Move page script moved page API foreach to WoW:API foreach without leaving a redirect

2023-08-15T04:45:32Z

Move page script moved page API foreach to API foreach without leaving a redirect

← Older revision

Revision as of 04:45, 15 August 2023

Bear at 02:31, 21 June 2020

2020-06-21T02:31:26Z

← Older revision		Revision as of 02:31, 21 June 2020
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	{{luaapi}}		{{luaapi}}
	~~Apply~~ the function ~~f to the elements of the~~ table ~~passed~~. ~~On each iteration the~~ function ~~f is passed the key-value pair of that element~~ in ~~the table~~.		Runs the supplied function once for each table element. Is a Lua table module function. (Deprecated in Lua 5.1, use pairs or ipairs instead.)
	table.foreach(~~tab~~, func);		local result = table.foreach(t, func)
	foreach(~~tab~~, func);		local result = foreach(t, func)

	From [~~http:~~//lua-users.org/wiki/TableLibraryTutorial ~~TableLibraryTutorial] of~~ lua-users.org.		== Parameters ==
			=== Arguments ===
			* t (table) - the table to iterate over
			* func (function) - the Lua function to call for each table element. Function arguments are func(index, value). IF function returns non-nil value the integration ends

			=== Returns ===
			* result (any) - If function 'func' returns a non-nil value then this value is returned, else returns 'nil'.

			== Summary ==
			Lua function in the in the Lua 'table' module that automatically iterates over a table, running the supplied Lua function once for each table element. Will apply the function 'func' to the elements of the table passed. On each iteration the function is passed the key-value pair of that element in the table.

			== Examples ==
			From [//lua-users.org/wiki/TableLibraryTutorial lua-users.org/wiki/TableLibraryTutorial]:

	> table.foreach({1,"two",3}, print) -- print the key-value pairs		> table.foreach({1,"two",3}, print) -- print the key-value pairs
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	pi 3.14159		pi 3.14159
	banana yellow		banana yellow

			== See also ==
			* table.foreach on [//www.lua.org/manual/5.0/manual.html lua.org/manual/5.0/manual.html]

WoWWiki>Starlightblunder: {{luaapi}}

2010-03-25T22:30:37Z

← Older revision		Revision as of 22:30, 25 March 2010
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	{{~~:Lua/Libshortcut\|foreach\|~~table.foreach}}		{{luaapi}}
			Apply the function f to the elements of the table passed. On each iteration the function f is passed the key-value pair of that element in the table.
			table.foreach(tab, func);
			foreach(tab, func);

	From [http://lua-users.org/wiki/TableLibraryTutorial TableLibraryTutorial] of lua-users.org.		From [http://lua-users.org/wiki/TableLibraryTutorial TableLibraryTutorial] of lua-users.org.

	~~table.foreach(table, f)~~

	~~Apply the function f to the elements of the table passed. On each iteration the function f is passed the key-value pair of that element in the table.~~

	> table.foreach({1,"two",3}, print) -- print the key-value pairs		> table.foreach({1,"two",3}, print) -- print the key-value pairs
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	pi 3.14159		pi 3.14159
	banana yellow		banana yellow

	~~{{LUA}}~~

WoWWiki>Mikk: Use Lua/Libshortcut template. Change category from "LUA Functions" to "Lua functions".

2006-05-26T12:14:40Z

Use Lua/Libshortcut template. Change category from "LUA Functions" to "Lua functions".

← Older revision		Revision as of 12:14, 26 May 2006
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			{{:Lua/Libshortcut\|foreach\|table.foreach}}

	From [http://lua-users.org/wiki/TableLibraryTutorial TableLibraryTutorial] of lua-users.org.		From [http://lua-users.org/wiki/TableLibraryTutorial TableLibraryTutorial] of lua-users.org.

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	banana yellow		banana yellow

	~~----~~		{{LUA}}
	{{~~template:WoW API~~}}

WoWWiki>Muert at 22:15, 30 December 2005

2005-12-30T22:15:02Z

← Older revision		Revision as of 22:15, 30 December 2005
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	pi 3.14159		pi 3.14159
	banana yellow		banana yellow

			----
			{{template:WoW API}}

WoWWiki>Sparsematrix at 02:33, 14 February 2005

2005-02-14T02:33:02Z

New page

From [http://lua-users.org/wiki/TableLibraryTutorial TableLibraryTutorial] of lua-users.org.

table.foreach(table, f)

Apply the function f to the elements of the table passed. On each iteration the function f is passed the key-value pair of that element in the table.

> table.foreach({1,"two",3}, print) -- print the key-value pairs
1 1
2 two
3 3
> table.foreach({1,"two",3,"four"}, function(k,v) print(string.rep(v,k)) end)
1
twotwo
333
fourfourfourfour

If the function f returns a non-nil value the iteration loop terminates.

> table.foreach({1,"two",3}, function(k,v) print(k,v) return k<2 and nil end)
1 1
2 two

Tables can contain mixed key-value and index-value elements. table.foreach() will display all of the elements in a table. To only display the index-value elements see table.foreachi(). For more information about this subject see the TablesTutorial.

> t = { 1,2,"three"; pi=3.14159, banana="yellow" }
> table.foreach(t, print)
1 1
2 2
3 three
pi 3.14159
banana yellow