LSL Operators

2007-08-03T14:00:54Z

Bingo Carlberg: + operator as list concatenator added

{{LSL Header}}
Operators are used to cause an operation (or mathematical action) to be performed on two operands. The easy and common example is 1 + 2 where 1 and 2 are operands, and the '''+''' is the operator.

This concept can be extended much further with LSL since operands can be variables with the special case of the assignment operators requiring that the left hand side be a variable.

{| bgcolor="#FFFFFF" border="1" cellspacing="2" cellpadding="6"
! bgColor="#A7C1F2" | Operator !! bgcolor="#A7C1F2" | Description
!! bgcolor="#A7C1F2" | Usage Example
|-
| () [] . || Parenthesis, Brackets, and Dot || do this second (do this first)
|-
| (''type'') || Typecasting || message = "The result is:" + (string) result;
|-
| ! ~ ++ -- || NOT, One's Complement, Increment, Decrement || counter++;
|-
| * / % || Multiply, Divide, Modulus || rollover = (count + 1)%5;
|-
| - || Subtraction || one = 3 - 2;
|-
| + || Addition or joining Strings || two = 1+1;
text = "Hello" + "World";
|-
| + || Concatenation or joining Lists || myList = [1, 2, 3] + [4, 5];
newList = oldList + addList;
|-
| << >> || Left Shift, Right Shift || eight = 4 << 1;
|-
| < <= > >= || Less Than, Less Than Or Equal To,
Greater Than, Greater Than or Equal To
|| isFalse = (6 <= 4);
|-
| == != || Comparison Equal, Comparison Not Equal || isFalse = ("this" == "that");
|-
| & || Bitwise AND || zero = 4 & 2;
four = 4 & 4;
|-
| ^ || Bitwise XOR || zero = 4 ^ 4;
six = 4 ^ 2;
|-
| <nowiki>|</nowiki> || Bitwise OR || four = 4 <nowiki>|</nowiki> 4;
six = 4 <nowiki>|</nowiki> 2;
|-
| && ||Comparison AND || isFalse = (FALSE && TRUE);
|-
| <nowiki>||</nowiki> || Comparison OR || isTrue = (FALSE <nowiki>||</nowiki> TRUE);
|-
| = += -= *= /= %= || Assignment || four = 4;

|}

Second Life Wiki - User contributions [en]

LSL Operators