How to Change JavaScript
JavaScript is the most common language for programming websites. It allows for a level of interactivity that is not possible with HTML alone. Changing the JavaScript may be necessary to update a site or to add new features. JavaScript does require a level of proficiency to utilize, so some additional research may be necessary to learn how to use the commands that are available. If a JavaScript file is being edited, the changes that are made will be reflected on any website that references that file. If the changes are being done in an HTML file, that file will be the only page that is affected.
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Instructions
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Locate the JavaScript file or the HTML file you want to edit. This file should be among the folders that your Web hosting service provides access to. The file extension should be ".js" or ".html."
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Open the file in the text editor of your choice, such as WordPad or Notepad.
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Find the portion of code that needs to be changed. If you are editing an HTML file, the code is within "<script>" tags. In a JavaScript file, the entire content, with the exception of comments, is editable code.
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Edit the code to reflect the intended changes. This is where knowledge of JavaScript syntax is required.
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Save the file and close it. Make sure that the copy has been saved in your Web hosting folder so that it will be in use on the live website.
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Check the website's functionality to make sure that the features you changed had the intended results, and verify that there were no unintended side effects.
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