Remove negative numbers from array

Question

I have an array coming from the database grabbing all the id\'s from a group of elements. However it seems to also be grabbing some negative id\'s from some backend stuff ha

Answer 1

Use grep:

ids = [-1,3,4,-2]
ids = jQuery.grep(ids, function( n, i ) {
  return n>=0;
});
console.log(ids)

Description: Finds the elements of an array which satisfy a filter function. The original array is not affected.

Answer 2

Just use Array.filter

ids = ids.filter(function(x){ return x > -1 });

Array.filter filters the elements based on the boolean returned. Here we filter only numbers which are greater than -1