Windows Hardware Lab Kit. Windows Insider - Windows Preview builds. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. RunCommands to see that our script is now resident. When a JavaScript script loads and is executed, it goes through a series of steps before the variables, functions, and other objects in the script affect the object model of the debugger. As mentioned, initializeScript will be called immediately after the root code of the script is executed.
Its job is to return a JavaScript array of registration objects to the provider indicating how to modify the object model of the debugger. The invokeScript method is the primary script method and is called when. The uninitializeScript method is the behavioral opposite of initializeScript. It is called when a script is unlinked and is getting ready to unload. If a script neither makes imperative manipulations to the object model nor caches results, it does not need to have an uninitializeScript method.
Any changes to the object model performed as indicated by the return value of initializeScript are undone automatically by the provider. Such changes do not require an explicit uninitializeScript method. Use this sample code to see when each function is called as the script is loaded, executed and unloaded.
Custom visualization files allow you to group and organize data in a visualization structure that better reflects the data relationships and content. You can use the JavaScript debugger extensions to write debugger visualizers which act in a way very similar to NatVis.
This is accomplished via authoring a JavaScript prototype object or an ES6 class which acts as the visualizer for a given data type. In order to visualize this type, we need to author a prototype or ES6 class which has all the fields and properties we want the debugger to show. We also need to have the initializeScript method return an object which tells the JavaScript provider to link our prototype as a visualizer for the given type.
A prototype or class which is made the visualizer for a native type through a return of a host. In addition, the following semantics apply:. Names which are part of standard JavaScript objects or are part of protocols which the JavaScript provider creates will not show up in the visualization.
An object can be made indexable via the support of a custom protocol consisting of several functions: getDimensionality, getValueAt, and optionally setValueAt. The bridge between JavaScript and the object model of the debugger is two-way.
Native objects can be passed into JavaScript and JavaScript objects can be passed into the Debugger's expression evaluator. As an example of this, consider the addition of the following method in our script:. This method can now be utilized in the example LINQ query above. First we load the JavaScript visualization. You can use JavaScript to do supplemental processing after a breakpoint is hit. For example, script can be used to examine other run time values and then determine if you want to automatically continue code execution or stop and do additional manual debugging.
For general information on working with breakpoints, see Methods of Controlling Breakpoints. This example will evaluate notepad's open and save dialog: notepad! Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. The Internet Explorer 11 desktop application will be retired and go out of support on June 15, for a list of what's in scope, see the FAQ.
Learn more here. This article solves the problem that the webpage can't be displayed when a script error occurs in Internet Explorer. When you receive script errors, webpages may not be displayed or work correctly in Internet Explorer.
Problems with this Web page might prevent it from being displayed properly or functioning properly. In the future, you can display this message by double-clicking the warning icon displayed in the status bar.
If you select Show Details , you may see detailed information about the following errors:. This problem may occur for one or more of the following reasons:. Script errors that occur because of server-side script failures do not produce error messages in Internet Explorer, but they may create a webpage that does not display or work correctly. The troubleshooting information in this article applies to client-side script errors. Contact the administrator of the web server if you suspect that a problem affects a server-side script.
These methods listed in this article may help you troubleshoot the script errors that are caused by files or settings on your computer. For quick visual instructions about how to troubleshoot script errors in Internet Explorer, watch this video:. Microsoft encourages you update your system with the latest windows update available. Help please! Where can I download Microsoft Script Editor standalone?
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