使用内联javascript从按钮onclick设置文本框的值

Question

I have a textbox and some buttons with an integer defined in value and data-for-count attributes. I know how to add the count value using jQuery in an external .js file, but is it possible to do this without calling a function?

HTML :

<div class="wrap">
    <div class="thediv">
        <input type="number" class="count" value="10" min="10" max="100" />
    </div>
    <div>
        <input type="button" class="quick" value="10" data-for-count="10" />
        <input type="button" class="quick" value="20" data-for-count="20" />
        <input type="button" class="quick" value="30" data-for-count="30" />
    </div>
</div>

This is what I've tried so far:

<input type="button" class="quick" value="77" data-for-count="77" onclick="$(this).closest('.wrap').find('input.count').val($(this).data('for-count'))" />

It fails since it's jQuery and not pure javascript, but it displays what I want to do.

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <div class="wrap"> <div class="thediv"> <input type="number" class="count" value="10" min="10" max="100" /> </div> <div> <input type="button" class="quick" value="10" data-for-count="10" /> <input type="button" class="quick" value="20" data-for-count="20" /> <input type="button" class="quick" value="30" data-for-count="30" /> </div> <input type="button" class="quick" value="77" data-for-count="77" onclick="$(this).closest('.wrap').find('input.count').val($(this).data('for-count'))" /> </div>

Answer 1

<input type="button" class="quick" value="10" data-for-count="10" onclick="document.querySelector('.count').value = this.dataset['forCount'];" />

 <div class="wrap"> <div class="thediv"> <input type="number" class="count" value="10" min="10" max="100" /> </div> <div> <input type="button" class="quick" value="10" data-for-count="10" /> <input type="button" class="quick" value="20" data-for-count="20" /> <input type="button" class="quick" value="30" data-for-count="30" /> </div> </div> <input type="button" class="quick" value="10" data-for-count="10" onclick="document.querySelector('.count').value = this.dataset['forCount'];" />