javascript - Indexing an array by a quotient -


in following code, i number quotient i / 2 should integer. should still use math.floor(i / 2) on safe side? i'm asking because javascript treat numbers floating points i'm concerned rounding errors.

for (var = 0; < data.length; = + 2) {     var name = names[i / 2];     ... }

no. not have use math.floor() in situation.

because i , names[1.00] equivalent names[1].

to check, try below in javascript console.

the length of array 20 , first 10 array items printed

var names = ["nums1", "nums2", "nums3","nums4", "nums5", "nums6","nums7",       "nums8", "nums9","nums10", "nums11","nums12", "nums13","nums14", "nums15",       "nums16","nums17", "nums18", "nums19","nums20"];    (var = 0; < names.length; = + 2) {      console.log(names[i/2]);  }


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