So, I have a list of items and I want to check how many pages I would need if I want to show , say, 10 items per page
ie
220 should give me 22 pages
134 should give me 14 pages
I am using the ceiling function to get the number of pages
var pages = parseInt(items)/10;
alert("pages " +pages);
alert(Math.ceil(pages));
The problem which I am having is if I have 7 items, I am expecting it to give me 1 page. However, I don't get any output. I have noticed that I only get an output if the value for pages from
var pages = parseInt(items)/10;
is greater than 1 , How do I fix this problem?
I think your problem lies elsewhere. Consider the following Math.ceil
operations:
> Math.ceil(220/10)
22
> Math.ceil(134/10)
14
> Math.ceil(7/10)
1
Then look at the operation that you might have handled -- a string version of a number:
> Math.ceil(parseInt("7")/10);
1
> Math.ceil(parseInt(" 7")/10);
1
> Math.ceil(parseInt(" 7 ")/10);
1
It would appear that Math.ceil
is providing 1
as expected, unless your value of 7
is malformed.
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