++ and -- Operators
| Language Reference ||
Used to increment or decrement a variable by one.
result = ++variable
result = --variable
result = variable++
result = variable--
The syntax of the ++ and --operators has the following parts:
Part Description result Any variable. variable Any variable.
The increment and decrement operators are used as a shortcut to modify the value stored in a variable. The value of an expression containing one of these operators depends on whether the operator comes before or after the variable.:var j, k k = 2 j = ++kj is assigned the value 3, as the increment occurs before the expression is evaluated. Compare this to the following:var j, k k = 2 j = k++Here, j is assigned the value 2, as the increment occurs after the expression is evaluated.
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