mod.js - mozsearch

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function mod()

  var mods = [-1,-1,-1,-1];

  var a = 9.5, b = -5, c = 42, d = (1/0);

  for (var i = 0; i < 20; i++) {

    mods[0] = a % b;

    mods[1] = b % 1;

    mods[2] = c % d;

    mods[3] = c % a;

    mods[4] = b % 0;

  return mods.toString();

assertEq(mod(), "4.5,0,42,4,NaN");