Special operators called compound operators provide a shorthand way to update a variable, such as userAge += 1 being shorthand for userAge = userAge + 1. Other compound operators include -=, *=, /=, and %=.
Style: Single space around operators
A good practice is to include a single space around operators for readability, as in numItems + 2, rather than numItems+2. An exception is minus used as negative, as in: xCoord = -yCoord. Minus (-) used as negative is known as unary minus.
No commas allowed
Commas are not allowed in an integer literal. So 1,333,555 is written as 1333555.
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