when i click a button second time my label want to dissappear

i have a button and label like this:

<button id="btn">Button</button>
<label  id="lbl">lbl</label>

When i click this button second time that label want to hide/dissappear

Answer

Code :

button = document.getElementById("btn")
label = document.getElementById("lbl")

button.addEventListener('dblclick', function(){
  label.style.display = 'none';
})
<button id="btn">Button</button>
<label  id="lbl">lbl</label>