I am not getting value in the alert box I am trying to get all values by using function with onclick. It gave me an empty value so how do I get all value with this keyword.
form
<form>
<input type="text" id='textid' />
<button class="btn" type="submit" onclick="myfunc(this);">click</button>
</form>
function
function myfunc(el){
let x = el.value;
alert(x) }
You are alerting value of button, instead you should first get the input and then get its value using .value property
const input = document.querySelector("input");
function myfunc(el) {
let x = input.value;
alert(x)
}<form>
<input type="text" id='textid' />
<button class="btn" type="submit" onclick="myfunc(this);">click</button>
</form>