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Operator1. In computer programming and at the command line, an operator is an object that is capable of manipulating a value or operator. For example, in "1 + 2", the "1" and "2" are the operands and the plus symbol is the operator. Below is a listing of common operators found in programming languages with explanations and examples.

Operator Alternative Explanation Examples
= Eq Equals a = b
== Eq Equals a == b
!= Ne Not equal a != b
+   Plus a + b
+=   Addition a += b
++   Increment a++
-   Minus a - b
-=   Subtraction a -= b
--   Decrement a--
/   Divide a / b
*   Times a * b
> Gt Greater than a > b
< Lt Less than a < b
>= Ge Greater than or equal to a >= b
<= Le Less than or equal to a <= b
|| or Boolean or a || b
&& and Boolean and a && b

Tip: Booleans are also considered operators where AND, OR, and NOT can also be used in most programming languages.

2. An op is a person who controls an IRC channel. See the op page for further information about this term.

Also see: Arithmetic operator, Boolean, Conditional expression, Decrement, Exclamation mark, Increment, Logic operator, Op, Operand, Operator associatively, Operator precedence, Order of operations, Programming terms, Syntactic sugar, Ternary operator