Microsoft® JScript += Operator |
| Language Reference | |
Used to increment a variable by a specified amount.
result += expressionThe += operator syntax has these parts:
Part Description result Any variable. expression Any expression.
Using this operator is exactly the same as specifying:result = result + expressionThe underlying subtype of the expressions determines the behavior of the += operator in the following way:
If Then Both expressions are numeric or boolean Add. Both expressions are strings Concatenate. One expression is numeric and the other is a string Concatenate. For information on when a run-time error is generated by the += operator, please see the Arithmetic Operators table.
file: /Techref/language/asp/js/134.htm, 3KB, , updated: 1996/11/22 10:11, local time: 2024/12/24 09:31,
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