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coffee's avatar
coffee
Contributor
8 years ago
Solved

VarArrayHighBound Method

Hi, I am trying to understand what the method VarArrayHighBound does. I found the documentation https://support.smartbear.com/viewarticle/86740/?q=VarArrayHighBound  and try this one (in Javascript...
  • HKosova's avatar
    HKosova
    8 years ago
    coffee wrote:

    I saw somewhere on this website this piece of codes

      ...
      // Call the function 
      arr = TestedPage.QuerySelectorAll(CSSSelector);
      // Check the result
      cnt = BuiltIn.VarArrayHighBound(arr,1);
      ...

    I just want to understand what does cnt = BuiltIn.VarArrayHighBound(arr,1); do actually.  :smileyhappy:   Thank You.

    That example is not quite correct, we'll fix it. Thanks for the notice! The correct JavaScript and JScript code would be:

    // JavaScript
arr = TestedPage.QuerySelectorAll(CSSSelector);
if (arr.length > 0)
  // found
else
  // not found
    // JScript
arr = TestedPage.QuerySelectorAll(CSSSelector);
arr = arr.toArray(); // convert the result to a native JScript array
    
if (arr.length > 0)
  // found
else
  // not found

    To answer the question about VarArrayHighBound, it is used in VBScript and DelphiScript code to determine the high bound of an array. It's an analog of VBScript's UBound function. VarArrayLowBound and VarArrayHighBound are used to determine the range of array indexes when you need to iterate through an array in VBScript or DelphiScript, because arrays in these languages do not necessarily use zero-based indexing.

     

    In JavaScript and JScript, you simply use arr.length.

     

    Hope this helps!

HKosova's avatar
HKosova
SmartBear Alumni (Retired)
8 years ago

VarArrayHighBound is for VBScript and DelphiScript arrays. It won't work with native JScript/JavaScript arrays and objects (note that "person" in your code is an object, not an array).

 

What exactly are you trying to accomplish? Maybe we can suggest a better solution for your actual problem.

  • coffee's avatar
    coffee
    Contributor
    8 years ago

    Thanks all. 

     

    I saw somewhere on this website this piece of codes

     

     

    function FindByCSSSelector()
    {
    var TestedPage, CSSSelector, arr, res, cnt;

      Browsers.Item(btChrome).Run("http://smartbear.com/");
      TestedPage = Sys.Browser('*').Page("http://smartbear.com/");

      CSSSelector = "a.nav-cat-main"; 
      
      // Call the function 
      arr = TestedPage.QuerySelectorAll(CSSSelector);
      // Check the result
      cnt = BuiltIn.VarArrayHighBound(arr,1);
        
      if (cnt > -1)
        { 
          // Matching elements were found 
          Log.Message("Found " + intToStr(cnt+1)+ " elements matching the CSS selector: " + CSSSelector);
          // Convert the array to the JScript-compatible format
          for (let i=0;i<=cnt;i++) 
            {
              // Output the element's content
              Log.Message(arr[i].contentText); 
            }
        }
      else
        {
          // No matching elements were found
          Log.Warning("Did not find any elements matching the CSS selector: " + CSSSelector);
        } 
    }

    I just want to understand what does cnt = BuiltIn.VarArrayHighBound(arr,1); do actually.  :smileyhappy:   Thank You.

     

    • HKosova's avatar
      HKosova
      SmartBear Alumni (Retired)
      8 years ago
      coffee wrote:

      I saw somewhere on this website this piece of codes

        ...
        // Call the function 
        arr = TestedPage.QuerySelectorAll(CSSSelector);
        // Check the result
        cnt = BuiltIn.VarArrayHighBound(arr,1);
        ...

      I just want to understand what does cnt = BuiltIn.VarArrayHighBound(arr,1); do actually.  :smileyhappy:   Thank You.

      That example is not quite correct, we'll fix it. Thanks for the notice! The correct JavaScript and JScript code would be:

      // JavaScript
arr = TestedPage.QuerySelectorAll(CSSSelector);
if (arr.length > 0)
  // found
else
  // not found
      // JScript
arr = TestedPage.QuerySelectorAll(CSSSelector);
arr = arr.toArray(); // convert the result to a native JScript array
      
if (arr.length > 0)
  // found
else
  // not found

      To answer the question about VarArrayHighBound, it is used in VBScript and DelphiScript code to determine the high bound of an array. It's an analog of VBScript's UBound function. VarArrayLowBound and VarArrayHighBound are used to determine the range of array indexes when you need to iterate through an array in VBScript or DelphiScript, because arrays in these languages do not necessarily use zero-based indexing.

       

      In JavaScript and JScript, you simply use arr.length.

       

      Hope this helps!

      • Colin_McCrae's avatar
        Colin_McCrae
        Community Hero
        8 years ago

        HKosova

         

        "VarArrayLowBound and VarArrayHighBound are used to determine the range of array indexes when you need to iterate through an array in VBScript or DelphiScript"

         

        Helen - is it not more to allow you to use a VBScript style variant array in a scripting language that doesn't natively support it?

         

        In VBScript, you wouldn't need to use VarArrayLowBound. You'd just use the native Ubound? No?