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Question: How to pass java script array to jsp
page?

Answer: I just started to learn java script. working on practice project to create shopping cart. The jsp page will getting the information from database, after user key in quantity in text box, it will submit to servlet.

Code:
<input type=text name="<%= newit.getItem() %>Qty" value = "0">

now I wanna use javascript to validate if the input is positive integer, so I change the name to "Qty", and added a hidden field right after this.

Code:
<input type=text name="Qty" value = "0"><input type="hidden" name="<%= newit.getItem() %>Qty" value = "<%=keyinQty%>">
the next step will be pass the array Qty from javascript back to keyinQty and sent to servlet, but I couldn't figure out how to do it.
Could anybody help? or is this a right method to do? anyone has good link that i could find helpful info? thanks!

Code:
<SCRIPT LANGUAGE=JAVASCRIPT> function validate() { var y = new Array(x.length) for ( i=0; i<x.length; i++) { if (parseInt(x[i].value) < 0 ) { alert("Please enter positive number:"); return false; } } return true; }</SCRIPT>




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Related Questions
1. How to pass java script array to jsp page?
2. hi Freinds, How can i use the array values which are defined in Test. Action1 in another Test. Action2?Is there any function?I can pass the values of var
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I just started to learn java script. working on practice project to create shopping cart. The jsp page will getting the information from database, after user key in quantity in text box, it will submit to servlet.

Code:
<input type=text name="<%= newit.getItem() %>Qty" value = "0">

now I wanna use javascript to validate if the input is positive integer, so I change the name to "Qty", and added a hidden field right after this.

Code:
<input type=text name="Qty" value = "0"><input type="hidden" name="<%= newit.getItem() %>Qty" value = "<%=keyinQty%>">
the next step will be pass the array Qty from javascript back to keyinQty and sent to servlet, but I couldn't figure out how to do it.
Could anybody help? or is this a right method to do? anyone has good link that i could find helpful info? thanks!

Code:
<SCRIPT LANGUAGE=JAVASCRIPT> function validate() { var y = new Array(x.length) for ( i=0; i<x.length; i++) { if (parseInt(x[i].value) < 0 ) { alert("Please enter positive number:"); return false; } } return true; }</SCRIPT>




Show Page [ 1 ]


Go To Top





Related Questions
1. How to pass java script array to jsp page?
2. hi Freinds, How can i use the array values which are defined in Test. Action1 in another Test. Action2?Is there any function?I can pass the values of var
3. HII have a problem in QTP to pass parameter to array. Example:Dim myparaDim myarray(100)mypara = "myname"myarray(mypa ra) = "senthil" ' its show the err
4. I am testing a Java executable application and and IE based application. I have a script that I would like to launch the Java executable, enter a recor
5. The way to declare an array is not dependent on the programming language used to write your program. Skill/Topic: ArrayA) TrueB) FalseExplanation: The way to declare an array depends on the programming language used to write your program. It is simil
6. Why do we Use a Multidimensional Array? Skill/Topic: ArrayA) A multidimensional array can be useful to organize subgroups of data within an array. In addition to organizing data stored in el
7. To pass parameters to the job we can use Unix shell program. But I do not know exactly how to do that. Plz let me know detail steps to pass the paramet
8. Which of the following is/are true for Window Manager- Skill/Topic: BeginnerA) Includes KeyBoardManager Component that allows hotkey to be defined for navigation purpose. B) Provides WindowManagement functi
9. You want to pass object data from a component that resides on a client computer to a component that resides on a server. You want to keep network traf Answer: A, B, C
10. What steps have you followed while automating? 1) Running the test manually and ensuring a "pass". 2)Recording3)Checkpo ints/Verification points4)Parameteriza tion if necessary5)Output values if neces

Related Articles
1. Introduction Tutorial: Tutorial Written By: Till JavaScript (also referred to as JS) is a programming language that you can use to add some cool and important functions to your webpages. Sometimes it is also referred to as a scripting language (Java Script ) with the implication that it is somehow easier to script than to
2. Choose a method for passing arrays to the Oracle Provider for OLEDB: We show you how to pass an array of values to a PL/SQL stored procedure, wrapped in the proper structure
3. Tips for Scripting Java with Jython: by Noel Rappin , co-author of Jython Essentials 03/27/2002 You have a programming dilemma. Maybe you're writing a Java program, and you need to do a quick one-off script to clean up your database. Sure, you could write it in Java, but that can involve a lot of overhead for a quick script. You could
4. Using Script Extensions in Xalan-Java: ( Page 1 of 8 ) This article will look at scripting languages that are not covered in the Xalan documentation, in particular, Python, VBScript, and PerlScript. In addition, we will show how Java Object instances, created in XSLT as part of the Java language extensions mechanism, are passed to these
5. Community-Submission: Converting a ksh Function to a ksh Script: A BigAdmin reader describes how to create a script that behaves as both an executable script and a ksh function.
6. Determining the size of a VB dynamic array: by ElementK Journals on Visual Basic Read Comments Rate this resource Viewed 24259 times Rating: 98 users 4.43 out of 5 Next > Dynamic arrays are great tools for creating a collection of values on the fly. However, you may have run into trouble when trying to determine if the array contains any i
7. Avoiding a Type Mismatch Error When Using ByRef with ASP and COM: By Stephen Lian Rating: 4.2 out of 5 Rate this article email this article to a colleague Introduction Those of you who have built ASP applications with middle-tier components have come across the need to pass information from an ASP page to a component and then back to the ASP page. In Visual Basic
8. Overland Delivering First Primary Storage Array: The fruit of Overland's acquisition of Zetta Systems, the array features a single storage processor with both iSCSI and Fibre Channel connectivity.
9. Client-Side Scripting and ASP: by Kannaiah Vadlakunta Introduction Most web applications involve both client-side and server-side script. Client-side script is often used to program the user interface for an application - for example, to change a web page's text dynamically, respond to user actions such as button clicks, and perf
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