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When should i know to use 'local' in variables?
people tell me i should put local in front of my variables but why
2
it's just better practice ScrubSadmir 200 — 6y
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Yep it's just better practice MrGaming4me 28 — 6y
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does it actually make a difference tho? Metraria 17 — 6y
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See Variables on RobloxDev or Lua website. Deals with scopes. xPolarium 1388 — 6y
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Global variables make your codebase a mess. They also pollute the global namespace as well as increase the risk for a name collision. Then there are no more variable names. User#24403 69 — 6y
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local variables is deemed to be a better practice because:
- It is just a better practice
- Avoids Name Collision
- Belongs to only certain chunk, depending on where you define it.
for i = 0, 10 do
local x = i;
end
print(x); --nil
for i = 1, 100 do
local y = i + 100;
end
print(y); --nil
Even if you really wanted to use global variables, you could simply declare local variables at the beginning of your script....
local x = 0;
while x < 10 do
x = x + 1;
end
print(x); -- 10
while x < 100 do
x = x + 1;
end
print(x); -- 100
while x < 50 do
x = x + 100;
end
print(x); -- 100.
-- while (100 < 50) is not true. The loop never initiates.
Unless there are specific scenarios where it is an absolute requirement.
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should i always use local even if its outside of functions and stuff? Metraria 17 — 6y
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Of Course. Hope this answers your question. zafiruatest 75 — 6y