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    <p>Comparing to the current best answer this code is more user-friendly - it allows usage of arrows, backspace, delete and other keys/combinations:</p> <pre><code>// Ensures that it is a number and stops the key press $('input[name="number"]').keydown(function(event) { if (!(!event.shiftKey //Disallow: any Shift+digit combination &amp;&amp; !(event.keyCode &lt; 48 || event.keyCode &gt; 57) //Disallow: everything but digits || !(event.keyCode &lt; 96 || event.keyCode &gt; 105) //Allow: numeric pad digits || event.keyCode == 46 // Allow: delete || event.keyCode == 8 // Allow: backspace || event.keyCode == 9 // Allow: tab || event.keyCode == 27 // Allow: escape || (event.keyCode == 65 &amp;&amp; (event.ctrlKey === true || event.metaKey === true)) // Allow: Ctrl+A || (event.keyCode == 67 &amp;&amp; (event.ctrlKey === true || event.metaKey === true)) // Allow: Ctrl+C //Uncommenting the next line allows Ctrl+V usage, but requires additional code from you to disallow pasting non-numeric symbols //|| (event.keyCode == 86 &amp;&amp; (event.ctrlKey === true || event.metaKey === true)) // Allow: Ctrl+Vpasting || (event.keyCode &gt;= 35 &amp;&amp; event.keyCode &lt;= 39) // Allow: Home, End )) { event.preventDefault(); } }); </code></pre> <p><strong>Notes:</strong> The <code>event.metaKey === true</code> is required for Mac users (thanks <a href="https://stackoverflow.com/users/1104780/ryanm">RyanM</a> for noticing this). Also if you uncomment Ctrl+V sequence you will need to write additional code for checking pasted text (disallow non-numeric symbols).</p>
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    1. POinput field, only numbers jquery/js
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    1. COplease add a reason **why** you think your solution is better
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    2. COComparing to the current 'best answer' this code allows usage of arrows, backspace, delete and other keys/combinations. Just try both approaches and you'll feel the difference
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    3. COyou should add that to your answer (instead just simply stating: It is better). It would greatly improve your answer and explain what your answer has that the others don't. Answers that give new aspects to earlier answers often get upvotes. Use the `edit` link.
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