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+= (Add assign) (Operator/assignment)

Adds the second operand to the first, modifying the first.

Availability:

ECMAScript edition - 2
JavaScript - 1.0
JScript - 1.0
Internet Explorer - 3.02
Netscape - 2.0
Netscape Enterprise Server- 2.0
Opera - 3.0
Property/method value type:Number primitive

See also:Additive operator, Assignment operator, Concatenate then assign (+=), Increment value (++), LValue

Refer to:

Add then assign (+=)

Cross-references:

ECMA 262 edition 2 - section - 11.13

ECMA 262 edition 3 - section - 11.13

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++ (Pre increment)Up, (Comma)

JavaScript Programmer's Reference, Cliff Wootton
Wrox Press (www.wrox.com)

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