+= adds a number to a variable and stores the result in the same variable.For example, this will print 16:
var someNumber = 10;
someNumber += 6;
console.log(someNumber); // 16
What does += mean in JavaScript?
+
+= adds a number to a variable and stores the result in the same variable.For example, this will print 16:
var someNumber = 10;
someNumber += 6;
console.log(someNumber); // 16