how do you make your script work on one window

How to Make Your Script Work on One Window

As a web developer, I have encountered situations where I want my script to work on one window only. It can be frustrating when the script opens multiple windows, causing confusion and inconvenience to users. Here are some ways I have found to make your script work on one window:

1. Use the Method

The method is commonly used to open new browser windows. By default, this method opens a new window. However, you can use the same method to open a window with a specific name or target. Here's how to use it:'url', 'name', 'features')
  • url: The URL of the page to be opened in the new window
  • name: The name of the new window. If a window with the same name already exists, the contents of that window will be replaced with the new page
  • features: A comma-separated list of features to be applied to the new window. Examples of features include height, width, and scrollbars

By specifying a unique name for the window, you can ensure that your script only opens one window. Here's an example:'', 'myWindow', 'width=500,height=500')

This code will open a new window with the URL, named myWindow, and with a width and height of 500 pixels each. If the myWindow window already exists, the contents will be replaced with the new page.

2. Use the target Attribute

Another way to ensure that your script works on one window is to use the target attribute in your HTML code. The target attribute specifies where to open the linked document.

<a href="" target="_blank">Link</a>

In this example, the target attribute is set to _blank, which means that the linked document will open in a new window. To open the linked document in the same window, you can set the target attribute to _self:

<a href="" target="_self">Link</a>

3. Use JavaScript to Close Other Windows

If your script has already opened multiple windows, you can use JavaScript to close them and ensure that only one window is open at a time. Here's an example:

var myWindows ='');
for (var i = 0; i < myWindows.length; i++) {
  if (myWindows[i] != window) {

This code opens a new window and stores a reference to all open windows in the myWindows variable. It then loops through each window and closes any window that is not the current window.


By using the method, the target attribute, or JavaScript to close other windows, you can ensure that your script works on one window only. This can simplify your code and make it more user-friendly.

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