Code blocking new tab in matlab

In MATLAB, you can use the web function to open a new tab in the default web browser. However, if you want to block new tabs from opening, you can use the following code:

% Set the default browser to not open new tabs
system('defaults write com.apple.Safari TabBar-new-tab-button-enabled -bool false');

This code uses the system function to execute a shell command that sets the default browser's preference to not open new tabs.

Note that this code only works on Macs, as it uses the defaults command to modify the Safari browser's preferences. If you're using a different operating system, you'll need to use a different approach.

Alternatively, you can use the web function with the -new option to open a new tab, like this:

web('https://www.example.com', '-new');

This will open a new tab in the default browser, but you can modify the code to block new tabs by checking if a new tab is already open before opening a new one.

Here's an example code snippet that demonstrates how to do this:

% Check if a new tab is already open
if ~exist('new_tab', 'var')
    % Open a new tab
    web('https://www.example.com', '-new');
    % Set the variable to indicate that a new tab is open
    new_tab = true;
end

This code checks if a variable new_tab is already set to true. If it's not set, it opens a new tab using the web function with the -new option, and then sets the new_tab variable to true. This way, the code will only open a new tab if one is not already open.