Полезная информация

Microsoft® JScript™
, Operator
 Language Reference 
Version 1 

See Also

Causes two expressions to be executed sequentially.
expression1, expression2

The , operator syntax has these parts:

Part Description
expression1 Any expression.
expression2 Any expression.

The , operator causes the expressions on either side of it to be executed in left-to-right order, and obtain the value of the expression on the right. The most common use for the , operator is in the increment expression of a for loop. For example:
for (i = 0; i < 10; i++, j++)
  k = i + j;
The for statement only allows a single expression to be executed at the end of every pass through a loop. The , operator is used to allow multiple expressions to be treated as a single expression, thereby getting around the restriction.

© 1997 Microsoft Corporation. All rights reserved. Terms of Use.