JavaScript DHTML/Dojo toolkit/Array — различия между версиями

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м (1 версия)
 
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Текущая версия на 07:20, 26 мая 2010

Array filter

 
<html>
  <head>
    <link rel="StyleSheet" type="text/css"
      href="js/dojo/dijit/themes/tundra/tundra.css">
    <script type="text/javascript">
      var djConfig = {
        baseScriptUri : "js/dojo/",
        parseOnLoad : true
      };
    </script>
    <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
    <script>
      dojo.require("dojo.parser");
      dojo.require("dojo.string");
      dojo.addOnLoad(f);
      
      function f(){
        alert(dojo.filter([2,3,4], function(x) {return x % 2 == 0}));
      }
    </script>
  </head>
  <body class="tundra">
     
</body>
</html>



Array index of

 
<html>
  <head>
    <link rel="StyleSheet" type="text/css"
      href="js/dojo/dijit/themes/tundra/tundra.css">
    <script type="text/javascript">
      var djConfig = {
        baseScriptUri : "js/dojo/",
        parseOnLoad : true
      };
    </script>
    <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
    <script>
      dojo.require("dojo.parser");
      dojo.require("dojo.string");
      dojo.addOnLoad(f);
      
      function f(){
        var foo = [1,2,3];
        var bar = [4,5,6,5,6];
        var baz = [1,2,3];
        alert(dojo.indexOf([foo, bar], baz)); 
        alert(dojo.indexOf(foo, 3)); 
        alert(dojo.indexOf(bar, 6, 2));
        alert(dojo.indexOf(bar, 6, 3));
        alert(dojo.lastIndexOf(bar, 6));
        
      }
    </script>
  </head>
  <body class="tundra">
     
</body>
</html>



Array index offset

 
<html>
  <head>
    <link rel="StyleSheet" type="text/css"
      href="js/dojo/dijit/themes/tundra/tundra.css">
    <script type="text/javascript">
      var djConfig = {
        baseScriptUri : "js/dojo/",
        parseOnLoad : true
      };
    </script>
    <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
    <script>
      dojo.require("dojo.parser");
      dojo.require("dojo.string");
      dojo.addOnLoad(f);
      
      function f(){
        var foo = [1,2,3];
        var bar = [4,5,6,5,6];
        var baz = [1,2,3];
        alert(dojo.indexOf([foo, bar], baz)); 
        alert(dojo.indexOf(foo, 3)); 
        alert(dojo.indexOf(bar, 6, 2));
        alert(dojo.indexOf(bar, 6, 3));
        alert(dojo.lastIndexOf(bar, 6));
        
      }
    </script>
  </head>
  <body class="tundra">
     
</body>
</html>



Get element index in an array

 
<html>
  <head>
    <script type="text/javascript">
      var djConfig = {
        baseScriptUri : "js/dojo/"
      };
    </script>
    <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
    <script>
      var a = [ "A", "N", "K", "S", "A" ];
      alert(dojo.indexOf(a, "A") + ", " + dojo.indexOf(a, "S") +
        ", " + dojo.indexOf(a, "N", 0, true));
    </script>
  </head>
  <body></body>
</html>



Get item index

 

<html>
  <head>
    <script type="text/javascript">
      var djConfig = {
        baseScriptUri : "js/dojo/"
      };
    </script>
    <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
    <script>
      var a = [ "B", "J", "K", "A", "B" ];
      alert(dojo.indexOf(a, "J") + ", " + dojo.indexOf(a, "B"));
    </script>
  </head>
  <body></body>
</html>



Get last index of

 
<html>
  <head>
    <script type="text/javascript">
      var djConfig = {
        baseScriptUri : "js/dojo/",
        parseOnLoad : true
      };
    </script>
    <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
    <script>
      function f(){
         alert(dojo.lastIndexOf(["foo", "hoo", "zoo", "shoe", "zoo", "nuu"], "zoo"));
      }
    </script>
  </head>
  <body onload=f()>
    
  </body>
</html>



Is array like

 
<html>
  <head>
    <script type="text/javascript">
      var djConfig = {
        baseScriptUri : "js/dojo/"
      };
    </script>
    <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
    <script>
      function doOnLoad() {
        alert(dojo.isArrayLike(document.body.childNodes));
      }
    </script>
  </head>
  <body onLoad="doOnLoad();"><div id="myDiv">I am myDiv</div></body>
</html>



Is object an array

 
<html>
  <head>
    <script type="text/javascript">
      var djConfig = {
        baseScriptUri : "js/dojo/"
      };
    </script>
    <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
  </head>
  <body>    
    <script type="text/javascript">
      var s = new String("I am a string");
      var a = new Array();
      var i = 5;
      alert(dojo.isArray(s) + "\n" + dojo.isArray(a) + "\n" + dojo.isArray(i));
    </script>
  </body>
</html>
Источник — «http://wbex.ru/index.php?title=JavaScript_DHTML/Dojo_toolkit/Array&oldid=2097»