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loopするんじゃね？

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2012-02-28 17:54:42

License: MIT License

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JavaScript 125 lines
HTML 2 lines
CSS 1 lines

loopするんじゃね？

(function(window,undefined) {
  var GIterator;
  GIterator = function(arr) {
    var $arr, $index, $len;
    $arr = arr || [];
    $index = 0;
    $len = $arr.length;
    return {
      current: function() {
        return $arr[$index];
      },
      next: function() {
        if (!this.hasNext()) {
          return null;
        } else {
          $index += 1;
          return this.current();
        }
      },
      prev: function() {
        if (!this.hasPrev()) {
          return null;
        } else {
          $index -= 1;
          return this.current();
        }
      },
      hasNext: function() {
        return $index < $len - 1;
      },
      hasPrev: function() {
        return $index > 0;
      },
      reset: function() {
        $index = 0;
        return this.current();
      },
      last: function() {
        $index = $len - 1;
        return this.current();
      },
      currentIndex: function() {
        return $index;
      },
      length: function() {
        return $len;
      },
      add: function(elm) {
        var i, l;
        if (arguments.length === 1) {
          $arr.push(elm);
        } else {
          l = arguments.length;
          for (i = 0; (0 <= l ? i <= l : i >= l); (0 <= l ? i += 1 : i -= 1)) {
            $arr.push(arguments[i]);
          }
        }
        $len = $arr.length;
        return this;
      },
      remove: function(elm) {
        var i, j, l, n, _i, _len;
        if (arguments.length === 1) {
          for (_i = 0, _len = $len.length; _i < _len; _i++) {
            i = $len[_i];
            if ($arr[$i] === elm) {
              $arr.splice(i, 1);
              $len = $arr.length;
            }
          }
        } else {
          l = arguments.length;
          for (j = 0; (0 <= $len ? j <= $len : j >= $len); (0 <= $len ? j += 1 : j -= 1)) {
            for (n = 0; (0 <= l ? n <= l : n >= l); (0 <= l ? n += 1 : n -= 1)) {
              if ($arr[j] === arguments[n]) {
                $arr.splice(j, 1);
                $len = $arr.length;
              }
            }
          }
        }
        return this;
      },
      setIndex: function(num) {
        var a;
        a = num - 1;
        if (a < 0) {
          this.reset();
        } else if (a > $len - 1) {
          this.last();
        } else {
          $index = a;
        }
        return this;
      },
      show: function() {
        if (window.console) {
          return console.log($arr);
        } else {
          return alert($arr);
        }
      }
    };
  };
  window.GIterator = window.GIT = GIterator;
}(this));

var t = GIT([1,2,3,4,5,6]);
var b = document.getElementById("btn");
var r = document.getElementById("results");

r.innerHTML = t.current();

if(document.addEventListener){
	b.addEventListener("click",pushButton,false);
}else if(document.attachEvent){
	b.attachEvent("onclick",pushButton);
}else{
	b.onclick = pushButton;
}

function pushButton(){
	r.innerHTML = t.next() || t.reset();
}

loopするんじゃね？

(function(window,undefined) { var GIterator; GIterator = function(arr) { var $arr, $index, $len; $arr = arr || []; $index = 0; $len = $arr.length; return { current: function() { return $arr[$index]; }, next: function() { if (!this.hasNext()) { return null; } else { $index += 1; return this.current(); } }, prev: function() { if (!this.hasPrev()) { return null; } else { $index -= 1; return this.current(); } }, hasNext: function() { return $index < $len - 1; }, hasPrev: function() { return $index > 0; }, reset: function() { $index = 0; return this.current(); }, last: function() { $index = $len - 1; return this.current(); }, currentIndex: function() { return $index; }, length: function() { return $len; }, add: function(elm) { var i, l; if (arguments.length === 1) { $arr.push(elm); } else { l = arguments.length; for (i = 0; (0 <= l ? i <= l : i >= l); (0 <= l ? i += 1 : i -= 1)) { $arr.push(arguments[i]); } } $len = $arr.length; return this; }, remove: function(elm) { var i, j, l, n, _i, _len; if (arguments.length === 1) { for (_i = 0, _len = $len.length; _i < _len; _i++) { i = $len[_i]; if ($arr[$i] === elm) { $arr.splice(i, 1); $len = $arr.length; } } } else { l = arguments.length; for (j = 0; (0 <= $len ? j <= $len : j >= $len); (0 <= $len ? j += 1 : j -= 1)) { for (n = 0; (0 <= l ? n <= l : n >= l); (0 <= l ? n += 1 : n -= 1)) { if ($arr[j] === arguments[n]) { $arr.splice(j, 1); $len = $arr.length; } } } } return this; }, setIndex: function(num) { var a; a = num - 1; if (a < 0) { this.reset(); } else if (a > $len - 1) { this.last(); } else { $index = a; } return this; }, show: function() { if (window.console) { return console.log($arr); } else { return alert($arr); } } }; }; window.GIterator = window.GIT = GIterator; }(this)); var t = GIT([1,2,3,4,5,6]); var b = document.getElementById("btn"); var r = document.getElementById("results"); r.innerHTML = t.current(); if(document.addEventListener){ b.addEventListener("click",pushButton,false); }else if(document.attachEvent){ b.attachEvent("onclick",pushButton); }else{ b.onclick = pushButton; } function pushButton(){ r.innerHTML = t.next() || t.reset(); } <div id="results">00000</div> <button id="btn">PUSH</button>body { background-color: #DDDDDD; font: 30px sans-serif; }

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