Expression Statements

Assignment statements are one major category of
expression statements.
 For example:


greeting = "Hello " + name;
i *= 3;

The increment and decrement operators, ++ and --, are related
to assignment statements. These have the side effect of changing
a variable value, just as if an assignment had been
performed:

counter++;

The delete operator has the important side effect of deleting
an object property.
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