What's UP Next » Java Script

IE7.0-Expected Identifier or String…Bang the bug

Asit — Wed, 31 Dec 2008 04:36:20 +0000

Hi,

While testing my application, I was very happy by getting smooth run on the FireFox and Safari. But when I tested that on IE7.0, I was banged with the error popup-

“Expected identifier or string”

on the very first page of the application. I started trying out putting few alerts on the very first javascript file loaded, but failed. After digging a lot, I found the way to get-rid-of this issue. Here is the soultion-

The problem JavaScript code was-

1    function txtCellEditor(){
2       var txt = new YAHOO.widget.TextboxCellEditor({
3                 asyncSubmitter: asyncUpdate,
4                 validator:YAHOO.widget.DataTable.validateNumber,
5               });
6       return txt;
7    }

The main problem was the “,”(comma) at the line 4. I removed the comma and the application started working fine on IE7 also.

Actually for IE, there should be no comma after the function closing(after the braces{}), or the parameters passed to the functions or the class constructors. IE considers that as a new line.

Enjoy debugging……

JavaScript Document Object Model

Asit — Tue, 29 May 2007 07:06:21 +0000

Toggle the Fields

Asit — Thu, 07 Dec 2006 12:00:11 +0000

While designing the web pages, sometimes you need to show the particular input field or labels or other page element, and show them on some event like click of a button, change the option from combobox ect.

One idea is make the field to be toggled, invisible by default and make it visible on that particular event. Here I am presenting some sample code, to achieve this :

The label “card number” and the input field “card_number” will be invisible by default. When somebody selects any option from the dropdown box, the function toggle_field() makes the invisible fields to visible and vice-versa. This code will help in toggling the page elements. Cheers…

Select option to show hidden elements:
Card Number: