JavaScript +console

All modern desktop browsers provide features to support developers debugging +JavaScript. While the browsers do not directly integrate true debugging support, +they usually support directing JavaScript error messages and logging statements +to either a console display or popup messages. Mozilla Firefox supports this +feature.

Consider the following trivial example of a web page with a JavaScript +error. It calls the method document.writex() which does +not exist.

<html>
+<body>
+<script language = "JavaScript">
+document.write('Testing1<br/>\n');
+document.writex('Testing2<br>\n');
+</script>
+Test Page
+</body>
+</html>
+

SETTINGS

Go to Web > Settings > General and select the following option

• Java/ECMA Script

This option provides you support to enable/disable JavaScript.

+ + + + + + + + + + +

+ Enable +	+ Enable JavaScript Console Support +
+ Disable +	+ Disable JavaScript Console Support +

• Java/ECMA Script errors

This option provides you choices to display and log errors.

+ + + + + + + + + + + + + + + + + + +

+ No Notification +	+ Enable JavaScript Console Support +
+ Create Log file +	+ It will create log file to the `C:\Data` folder of SDK +
+ Show pop-up notes +	+ It will show pop-up notes on the emulator screen +
+ Log and pop-up notes +	+ It will show pop-up notes and create logs to `C:\Data` folder +of the SDK +

ERROR SCENARIO

Try to run the JavaScript example that has an error. Just like an ordinary +browser, it will display error message based on your selected criteria from +the web settings.

HOW TO USE

Below is the functional description of how this feature can be used.

An option +for JavaScript console is added to the Browser settings. There are three options +for this setting: Disable, Prompt and Log.
+
- When the Disable option is selected, the JavaScript +console for browser / widgets are disabled.
- When the Prompt option is selected, JavaScript errors +and exceptions are presented in a popup dialog
- When the Log option is selected, JavaScript errors +and exceptions are logged into a text file that is placed in a user accessible +area of the device’s file system. For example, C:\data
  +
+
JavaScript +console supports console.log for logging messages to the +console