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&&

Returns true if both the first and second expression evaluate to true.

Syntax

expressionA && expressionB

Example

var myCat = "Jasmine";
var myDog = "Jordo";
if ((myCat == "Jasmine") && (myDog=="Jordo"))
    return true; //Returns true because both conditions are true.

Remarks

Returns false if either expression is false.