Category:LSL Functions

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This category contains built-in LSL functions.


All types in LSL are immutable (they can't be mutated by side effect), variables can only be changed by being overwritten. There is no way to indirectly modify a variable's value; the only way is through direct interaction with a storing operator (=, +=, -=, *=, /=, %=, ++, --).

  • Built-in functions will never modify the variables used as parameters.
  • User functions that change the values of parameters inside the function scope will not have those changes applied to the variables that supplied those parameters. [1]


Key Description
 NEW  The function was recently added.
 I  The LSO function ID for the function is not known, or it may not have one.
 D  The function has been deprecated but still works.
It is best to avoid functions marked as deprecated.
 R  The function has not only been deprecated, it has been removed.
Do not use functions marked as removed.
 U  The function has not been implemented.
Do not use functions marked as not implemented.
 B  This function is marked as broken and may not work.
 G  The function requires god-mode.
Functions marked as such cannot be used.
 RQ  This function has been requested by several users and has not been implemented.
Do not use functions marked as requested.


  1. ^ Function parameters are effectively passed by value, not by reference. When pass by reference is used in LSO-LSL, the reference points to a copy of the value, not to the original.