remove text from multiple spans having same id

remove text from multiple spans having same id

I have multiple spans
<span id ="myId">data1</span>
<span id ="myId">data2</span>
<span id ="myId">data3</span>
<span id ="myId">data4</span>
<span id ="myId">data5</span>
I want to delete text inside all span on single button click.
I tried this on button click in javascript
document.getElementById("myId").innerHTML = "";
but it is removing text from only 1st span