JS Challenge 2

JavaScript performance comparison

Revision 2 of this test case created

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The second code challenge @ DM

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Testing in unknown unknown
Test Ops/sec
Michael K
function scrambler() {
  var match = 0
  var fail = 0;
  var clone = "this is my test string";
  var cloneLow = clone.toLowerCase();
  var cloneArr = cloneLow.split("");
  var orig = "i miss test";
  var origLow = orig.toLowerCase();
  var origArr = origLow.split("");
  for (var i = 0; i < clone.length; i++) {
    if (orig.indexOf(clone[i]) == -1) {
      fail++;
    } else {
      match++;
    }
  }
  if (match >= origArr.length) {
    return true;
  } else {
    return false;
  }
}
pending…
Max H
function StringScramble(str1, str2) {
  var arr = new Array(26);
  var index;
  var arr_length = arr.length;
  var str1_length = str1.length;
  var str2_length = str2.length;
  // Initialize the array to 0
  for (var i = 0; i < arr_length; i++) {
    arr[i] = 0;
  }

  str2 = str2.toLowerCase();
  // Put char counts into arr for str2
  for (var j = 0; j < str2_length; j++) {
    index = str2[j].charCodeAt(0) - 97;
    arr[index] = arr[index] + 1;
  }

  // Compare str1 to str2
  for (var k = 0; k < str1_length; k++) {
    index = str1[k].charCodeAt(0) - 97;
    if (arr[index] > 0) arr[index] = arr[index] - 1;
  }

  // If any of the elements in the arry is non 0,
  // there's a mismatch and str1 cannot be a permutation of str2
  for (var n = 0; n < arr_length; n++) {
    if (arr[n] != 0) return false;
  }
  return true;
}
pending…

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