Module:If empty: Difference between revisions
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(properly handle blanks acting like empties (I'm not sure it's a good idea to do this at all, but if it is, this is how you should do it)) |
(add comment) |
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function p.main(frame) |
function p.main(frame) |
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local args = require('Module:Arguments').getArgs(frame, {wrappers = 'Template:If empty', removeBlanks = false}) |
local args = require('Module:Arguments').getArgs(frame, {wrappers = 'Template:If empty', removeBlanks = false}) |
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-- For backwards compatibility reasons, the first 9 parameters can be unset instead of being blank, |
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-- even though there's really no legitimate use case for this. At some point, this will be removed. |
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for i = 1,9 do |
for i = 1,9 do |
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if args[i] == nil then |
if args[i] == nil then |
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| Line 8: | Line 11: | ||
end |
end |
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end |
end |
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for _,v in ipairs(args) do |
for _,v in ipairs(args) do |
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if v ~= '' then |
if v ~= '' then |
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Revision as of 16:24, 23 December 2014
Documentation for this module may be created at Module:If empty/doc
local p = {}
function p.main(frame)
local args = require('Module:Arguments').getArgs(frame, {wrappers = 'Template:If empty', removeBlanks = false})
-- For backwards compatibility reasons, the first 9 parameters can be unset instead of being blank,
-- even though there's really no legitimate use case for this. At some point, this will be removed.
for i = 1,9 do
if args[i] == nil then
args[i] = ''
end
end
for _,v in ipairs(args) do
if v ~= '' then
return v
end
end
end
return p