API foreach

104,672pages on
this wiki
Add New Page
Talk3 Share
WoW Lua

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 TableLibraryTutorial of

> 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)

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

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.

Also on Fandom

Random Wiki