Revision Difference
table.foreach#527956
<function name="foreach" parent="table" type="libraryfunc">
<description>
<deprecated>This was deprecated in Lua 5.1 and removed in 5.2. You should use <page>Global.pairs</page>() instead.</deprecated> Iterates for each key-value pair in the table, calling the function with the key and value of the pair. If the function returns anything, the loop is broken.
This is inherited from the original Lua implementation and is deprecated in Lua as of 5.1; see [here](http://lua-users.org/wiki/TableLibraryTutorial). You should use <page>Global.pairs</page>() instead. The GLua interpretation of this is <page>table.ForEach</page>.
<deprecated>This was deprecated in Lua 5.1 and removed in 5.2. You should use <page>Global.pairs</page> instead.</deprecated> Iterates for each key-value pair in the table, calling the function with the key and value of the pair. If the function returns anything, the loop is broken.
This is inherited from the original Lua implementation and is deprecated in Lua as of 5.1; see [here](http://lua-users.org/wiki/TableLibraryTutorial). You should use <page>Global.pairs</page> instead. The GLua interpretation of this is <page>table.ForEach</page>.
</description>
<realm>Shared and Menu</realm>
<args>
<arg name="tbl" type="table">The table to iterate over.</arg>
<arg name="callback" type="function">The function to run for each key and value.</arg>
</args>
</function>
<example>
<description>Demonstrates the use of this function.</description>
<code>
local food = { "Cake", "Pies", Delicious = "Cookies", Awesome = "Pizza" }
table.foreach( food, function( key, value )
print( tostring(key) .." ".. value)
⤶
table.foreach( food, function( key, value )
print( tostring(key) .. " " .. value)
end)
</code>
<output>
⤶
```⤶
```⤶
1 Cake
2 Pies
Awesome Pizza
Delicious Cookies
```
⤶
</output>
⤶
</example>⤶
</output>
</example>⤶
<example>
<description>Demonstrates the breaking effect if the callback returns a value.</description>
<code>
local tbl = { "One", "Two", "Three", "Four" }
table.foreach( tbl, function( key, value )
print( key, value )
if key == 2 then return true end
⤶
table.foreach( tbl, function( key, value )
print( key, value )
if key == 2 then return true end
end)
</code>
<output>
⤶
```⤶
```⤶
1 One
2 Two
```
⤶
</output>
⤶
</example> </output>
</example>