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what does ++ do?
4 ответов
+ 1
increment your number by 1.
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it adds one to the number.
for (i=0;i <10;i++){
alert (i);
}
i++ is a shortcut that means i=i+1
therefore the value of i increases during the loop.
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just let x+1
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i++ is post increment and ++i is pre increment.Suppose var a=5;a++;
Here post increment the value of 5 is assigned to a and incremented by 1; whereas if there was ++a instead of a++ , pre increment the value of a is first incremented and then assigned to a