Javascript checkbox onChange

Pure javascript:

const checkbox = document.getElementById('myCheckbox')

checkbox.addEventListener('change', (event) => {
  if (event.currentTarget.checked) {
    alert('checked');
  } else {
    alert('not checked');
  }
})

My Checkbox: <input id="myCheckbox" type="checkbox" />

function calc()
{
  if (document.getElementById('xxx').checked) 
  {
      document.getElementById('totalCost').value = 10;
  } else {
      calculate();
  }
}

HTML

<input type="checkbox" id="xxx" name="xxx" onclick="calc();"/>

Tags:

Javascript

Checkbox

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