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  <title>Fibonacci — n terms</title>
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  <h1>First n Fibonacci terms</h1>
  <p>Edit <code>terms</code>, then <strong>Run</strong>.</p>
  <pre id=out></pre>
  <script>document.getElementById("out").textContent=function(t){if(t<=0)return"Need a positive term count.";var e,n=0,r=1,o=[];for(e=0;e<t;e++){o.push(String(n));var i=n+r;n=r,r=i}return"Fibonacci series up to "+t+" terms: "+o.join(", ")}(10)</script>
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JavaScript Fibonacci — First n terms (Try It)