What is negative infinity in JS?
Syntax:
Number.NEGATIVE_INFINITY;
What is negative infinity in JS?
Syntax:
Number.NEGATIVE_INFINITY;
It’s common to use extreme values as a starting point for functions finding the maximum in a set of data. In this case, because elements don’t have a height less than 0
, it isn’t necessary, but provides better understanding once you’ve seen this concept before.
Consider the following arbitrary example.
var data = [ 1, 5, -10000, 50, 1240 ];
function maxData(data) {
var max = Number.NEGATIVE_INFINITY;
for (var i = 0; i < data.length; ++i)
if (data[ i ] > max)
max = data[ i ];
return max;
}
This works great in JavaScript because any value compared to Math.NEGATIVE_INFINITY
will be greater.