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 |
Revision as of 21:24, December 23, 2014
This module is subject to page protection. It is a highly visible module in use by a very large number of pages, or is substituted very frequently. Because vandalism or mistakes would affect many pages, and even trivial editing might cause substantial load on the servers, it is protected from editing. |
This module depends on the following other modules: |
This module supports Template:If empty.
Tracking/maintenance category
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