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  <title>JS Alphabet Pattern 17 - Try It</title>
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  <h1>Diagonal star grid</h1>
  <p>Edit the loops or swap <code>*</code> for another character, then Run.</p>
  <pre id=output></pre>
  <script>(()=>{const t="A".charCodeAt(0),e="E".charCodeAt(0);let o="";for(let n=t;n<=e;n++){let r="";for(let o=e;o>=t;o--)r+=n===o?"*":String.fromCharCode(o);o+=r+"\n"}document.getElementById("output").textContent=o})()</script>
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JavaScript Alphabet Pattern 17 (Try It)