What is the use of math.ceil in Lightning Component in Salesforce?

Hi Deepak,
The Math.ceil() function always rounds a number up to the next largest whole number or integer.
Note: Math.ceil(null) returns integer 0 and does not give a NaN error
ek 2.5=3, 2=2, -7.004=-7.
we also have Math.floor
Math.floor() function returns the largest integer less than or equal to a given number.
it can be used in a lot of ways in your lightning component,
for ex;- In pagination
where your total no of records are 20, and your page size is 8, to go to the last page,
where page no is being calculated as totalrecords/pagesize,
i this case 2.5, math.ceil(2.5) returns 3, and we have our page no