JavaScript click event-one button triggers another button

<input type="button" value="Click" id="C" onclick="Go();">
<input type="button" value="Wait" id="W" onclick="javascript:alert('Amazing!');">

    var C=document.getElementById("C");
    var W=document.getElementById("W");
    function Go() {

2 Add to button click event clicktrigger button click event 1, even add style to the button 1 display: none;or visibility: hidden;hide can also trigger.

<button type="button" id="btn1" onclick="alert('我是按钮1的弹框')" >按钮1</button>
<button type="button" id="btn2">按钮2</button>
<script type="text/javascript">
    const BTN1 = document.getElementById('btn1');
    const BTN2 = document.getElementById('btn2');
    BTN2.addEventListener('click', () => {
        BTN1.onclick(); //按钮2点击后触发按钮1的onclick
        //; //按钮2点击后触发按钮1的click 效果一样

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