Javascript code weird bug

Registration date
Monday January 18, 2021
Last seen
February 20, 2021
Hi, I use a Javascript code to open a link in new tab when a button is clicked. I use this function:
<button  onclick="myFunction()">Open site</button>
function myFunction(){"LINK");

The problem is there is a bug in links it open the wrong links like if I clicked the other button, it mixes the links. This happens if the codes are in the same page. I searched google for this probleme but i don't find. Any idea about this weird thing?
How can I put my buttons in home page without having this bug?

Thank you,

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