Increment a Variable in Javascript

To increment a variable in Javascript is very easy:

ko=0;

ko++;

document.write(ko);


Which Prints:
1

-We create and name our variable ko and give it a value of 0.
-We increment it, or add one, with plus plus ++
-We print to the browser with document.write


Another example in a for loop:

ko=1;

for(h=0;h<50;h++) {
if (h == 2 || h==4) {
ko++;
}
}

document.write(ko);

Which Prints:
3


-We gave our variable ko a value of 1 to start this time.
-We created a for loop
-We said if our variable h equals 2 or 4, the double vertical bars mean or, increment ko.


Free Copy and Paste Javascript Code:

<script type="text/javascript">
<!--

ko=1;

for(h=0;h<50;h++) {
if (h == 2 || h==4) {
ko++;
}
}

document.write(ko);

-->
</script>


Resources:
PRINT to Browser with document.write Command in Javascript
Write a For Loop in Javascript
If, Else If, and Else in Javascript


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