How can I simulate ctrl shift C in jquery

The use of 'keyCode's' is deprecated and was removed from some browsers for security reasons.

Quote:

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes

- KeyboardEvent: keyCode property[^]

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You should avoid using this if possible; it's been deprecated for some time. Instead, you should use 'KeyboardEvent.code'

Full tutorial with code is given at - KeyboardEvent: code property[^]

To simulate the CTR SHIFT C -

// Simulate Ctrl + Shift + C
var event = jQuery.Event("keydown");
event.ctrlKey = true;
event.shiftKey = true;
event.which = 67; // Key code for 'C'
$(document).trigger(event);