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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
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it's just better practice User#22980 0 — 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.
01 | for i = 0, 10 do |
02 | local x = i; |
03 | end |
04 |
05 | print(x); --nil |
06 |
07 | for i = 1, 100 do |
08 | local y = i + 100; |
09 | end |
10 |
11 | print(y); --nil |
Even if you really wanted to use global variables, you could simply declare local variables at the beginning of your script....
01 | local x = 0; |
02 |
03 | while x < 10 do |
04 | x = x + 1; |
05 | end |
06 |
07 | print(x); -- 10 |
08 |
09 | while x < 100 do |
10 | x = x + 1; |
11 | end |
12 |
13 | print(x); -- 100 |
14 |
15 | while x < 50 do |
View all 21 lines...
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