title: Check if falsy except zero in JavaScript
body: <p>I am checking if a value is not falsy with</p>
  
  <pre><code>if (value) {
    ..
  }
  </code></pre>
  
  <p>but I do want to accept zeros as a (non-falsy) value. How is this normally done? Would it be</p>
  
  <pre><code>if (value || value === 0) {
    ..
  }
  </code></pre>
  
  <p>or what?</p>