Difference between revisions of "(global)"
(20 intermediate revisions by 2 users not shown) | |||
Line 1: | Line 1: | ||
__NOTOC__ | __NOTOC__ | ||
− | '''Supported platforms:''' android | + | <!-- GIDEROSOBJ:(global) --> |
+ | '''Supported platforms:''' [[File:Platform android.png]][[File:Platform ios.png]][[File:Platform mac.png]][[File:Platform pc.png]]<br/> | ||
'''Available since:''' Gideros 2011.6<br/> | '''Available since:''' Gideros 2011.6<br/> | ||
+ | |||
=== Description === | === Description === | ||
− | Global scope of Lua environment | + | Global scope of Lua environment. |
− | + | ||
− | + | === Example === | |
− | + | '''Prints all current global variables:''' | |
− | + | <syntaxhighlight lang="lua"> | |
− | + | local function globalVariable() | |
− | + | for k,v in pairs(_G) do | |
− | + | print(k,v) | |
− | + | end | |
− | + | end | |
− | + | ||
− | + | globalVariable() | |
− | + | </syntaxhighlight> | |
− | + | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
{|- | {|- | ||
− | | style="width: 50%;"| | + | | style="width: 50%; vertical-align:top;"| |
=== Methods === | === Methods === | ||
− | [[assert]] | + | [[assert]] ''error if v nil or false, otherwise returns v''<br/><!--GIDEROSMTD:assert(v,message) error if v nil or false, otherwise returns v--> |
− | [[collectgarbage]] - opts: stop, restart, collect, count, step, setpause, setstepmul<br/> | + | [[collectgarbage]] ''opts: stop, restart, collect, count, step, setpause, setstepmul''<br/><!--GIDEROSMTD:collectgarbage(opt,arg) opts: stop, restart, collect, count, step, setpause, setstepmul--> |
− | [[dofile]] | + | [[ColorValue]] ''sets a Color the r,g,b,a channel values''<br/><!--GIDEROSMTD:ColorValue(r,g,b,a) sets a Color the r,g,b,a channel values--> |
− | [[error]] | + | [[dofile]] ''executes as Lua chunk, default stdin, returns value''<br/><!--GIDEROSMTD:dofile(filename) executes as Lua chunk, default stdin, returns value--> |
− | [[getfenv]] | + | [[error]] ''terminates protected func, never returns''<br/><!--GIDEROSMTD:error(message,level) terminates protected func, never returns--> |
− | [[getmetatable]] | + | [[getfenv]] ''gets env, f can be a function or number(stack level)''<br/><!--GIDEROSMTD:getfenv(f) gets env, f can be a function or number(stack level)--> |
− | [[ipairs]] | + | [[getmetatable]] ''returns metatable of given object, otherwise nil''<br/><!--GIDEROSMTD:getmetatable(object) returns metatable of given object, otherwise nil--> |
− | [[loadfile]] | + | [[ipairs]] ''returns an iterator function, table t and 0''<br/><!--GIDEROSMTD:ipairs(t) returns an iterator function, table t and 0--> |
− | [[loadstring]] | + | [[loadfile]] ''loads chunk without execution, returns chunk as function, else nil plus error''<br/><!--GIDEROSMTD:loadfile(filename) loads chunk without execution, returns chunk as function, else nil plus error--> |
− | [[next]] | + | [[loadstring]] ''loads string as chunk, returns chunk as function, else nil plus error''<br/><!--GIDEROSMTD:loadstring(string,chunkname) loads string as chunk, returns chunk as function, else nil plus error--> |
− | [[pairs]] | + | [[next]] ''returns next index,value pair, if index=nil(default-, returns first index''<br/><!--GIDEROSMTD:next(table,index) returns next index,value pair, if index=nil(default-, returns first index--> |
− | [[pcall]] | + | [[pairs]] ''returns the next function and table t plus a nil, iterates over all key-value pairs''<br/><!--GIDEROSMTD:pairs(t) returns the next function and table t plus a nil, iterates over all key-value pairs--> |
− | [[print]] | + | [[pcall]] ''protected mode call, catches errors, returns status code first''<br/><!--GIDEROSMTD:pcall(f,arg1,arg2,...) protected mode call, catches errors, returns status code first--> |
− | [[rawequal]] | + | [[print]] ''prints values to stdout using tostring''<br/><!--GIDEROSMTD:print(e1,e2,...) prints values to stdout using tostring--> |
− | [[rawget]] | + | [[rawequal]] ''non-metamethod v1==v2, returns boolean''<br/><!--GIDEROSMTD:rawequal(v1,v2) non-metamethod v1==v2, returns boolean--> |
− | [[rawset]] | + | [[rawget]] ''non-metamethod get value of table[index], index != nil''<br/><!--GIDEROSMTD:rawget(table,key) non-metamethod get value of table[index], index != nil--> |
− | [[require]] - loads package, updates _LOADED, returns boolean<br/> | + | [[rawset]] ''non-metamethod set value of table[index], index != nil''<br/><!--GIDEROSMTD:rawset(table,key,value) non-metamethod set value of table[index], index != nil--> |
− | [[setfenv]] | + | [[require]] ''loads package, updates _LOADED, returns boolean''<br/><!--GIDEROSMTD:require(packagename) loads package, updates _LOADED, returns boolean--> |
− | [[setmetatable]] | + | [[select]] ''returns items in a list or number of items in a list''<br/><!--GIDEROSMTD:select(index,...) returns items in a list or number of items in a list--> |
− | [[tonumber]] | + | [[setfenv]] ''sets env, f can be a function or number(stack level, default=1-, 0=global env''<br/><!--GIDEROSMTD:setfenv(f,table) sets env, f can be a function or number(stack level, default=1-, 0=global env--> |
− | [[tostring]] | + | [[setmetatable]] ''sets metatable, nil to remove metatable''<br/><!--GIDEROSMTD:setmetatable(table,metatable) sets metatable, nil to remove metatable--> |
− | [[type]] | + | [[tonumber]] ''convert to number, returns number, nil if non-convertible, 2<=base<=36''<br/><!--GIDEROSMTD:tonumber(e,base) convert to number, returns number, nil if non-convertible, 2<=base<=36--> |
− | [[unpack]] - returns all elements from list<br/> | + | [[tostring]] ''convert to string, returns string''<br/><!--GIDEROSMTD:tostring(e) convert to string, returns string--> |
− | [[xpcall]] | + | [[type]] ''returns type of v as a string''<br/><!--GIDEROSMTD:type(v) returns type of v as a string--> |
− | | style="width: 50%;"| | + | [[unpack]] ''returns all elements from list''<br/><!--GIDEROSMTD:unpack(list) returns all elements from list--> |
+ | [[vector]] ''vector with up to 3 values''<br/><!--GIDEROSMTD:vector(x,y[,z]) vector with up to 3 values--> | ||
+ | [[xpcall]] ''pcall function f with new error handler err''<br/><!--GIDEROSMTD:xpcall(f,err) pcall function f with new error handler err--> | ||
+ | |||
+ | | style="width: 50%; vertical-align:top;"| | ||
=== Events === | === Events === | ||
=== Constants === | === Constants === | ||
− | [[_G]] | + | [[_G]]<br/><!--GIDEROSCST:_G--> |
− | [[_VERSION]] | + | [[_VERSION]]<br/><!--GIDEROSCST:_VERSION Lua 5.x.x--> |
|} | |} | ||
+ | |||
+ | {{GIDEROS IMPORTANT LINKS}} |
Latest revision as of 02:39, 8 November 2024
Supported platforms:
Available since: Gideros 2011.6
Description
Global scope of Lua environment.
Example
Prints all current global variables:
local function globalVariable()
for k,v in pairs(_G) do
print(k,v)
end
end
globalVariable()
Methodsassert error if v nil or false, otherwise returns v |
EventsConstants |