#110 – Combining the Arithmetic Operators with the Assignment Operator
October 5, 2010 Leave a comment
When you want to perform an arithmetic operation on a variable and assign the result back to the same variable, you can use the syntactical shortcut shown below.
Instead of writing :
x = x * 3; // Multiply x by 3
you can just write :
x *= 3; // Multiply x by 3
You can do the same thing with all arithmetic operators :
x += 10; // Add 10 to x x -= 10; // Subtract 10 from x x /= 10; // Divide x by 10 x %= 2; // Get remainder after dividing x by 2
These operators are known as compound assignment operators.
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