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POBlock characters from input text field, mirror input into span or div
 

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    <p>I have some html</p> <pre><code>&lt;input type="text" name="name" value="" id="name"&gt; &lt;div id="preview"&gt;&lt;/div&gt; </code></pre> <p>The rules for entry into the field:</p> <ul> <li>Letters A-Z a-z 0-9 space and dash, no other characters allowed<br /></li> <li>Entry of forbidden characters should do nothing<br /></li> </ul> <p>The rules for the div:</p> <ul> <li>Show each characters as it is entered into the input field<br /></li> <li>Do not show characters that are forbidden<br /></li> <li>When a space is encountered, show it as a dash<br /></li> </ul> <p>I have had various potions working, not working, or misbehaving. This version seems to work in all cases I can test other than backspace/delete is non functional. Only tested in Safari so far.</p> <p>There are other "gotcha" areas, like entering in text in-between already entered text, select all, using the arrow keys, all these play a role in this problem. </p> <pre><code> $(document).ready(function(){ $('#name').keypress(function(e) { // get key pressed var c = String.fromCharCode(e.which); // var d = e.keyCode? e.keyCode : e.charCode; // this seems to catch arrow and delete better than jQuery's way (e.which) // match against allowed set and fail if no match var allowed = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890- '; if (e.which != 8 &amp;&amp; allowed.indexOf(c) &lt; 0) return false; // d !== 37 &amp;&amp; d != 39 &amp;&amp; d != 46 &amp;&amp; // just replace spaces in the preview window.setTimeout(function() {$('#preview').text($('#name').val().replace(/ /g, '-'));}, 1); }); }); </code></pre> <p>If there is a way to put a monetary bounty on this post, let me know. Yes, that is where I am at with this one :)</p>
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    1. USJoel Coehoorn
    1. USuser170579
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    1. COWhat is the question exactly? Also, your javascript might be better in a code block and formatted so it's readable.
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      1. USOdd
    2. COI think with your current reputation you can't put a bounty on this.
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      1. USrahul
 

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