Javascript: help with replacing '<div>' with '<br>' of an innerHTML!
Question
I have an editable div where the user writes. As he writes, a javascript function adds the div html to a textarea . When the user presses SHIFT+Enter, the div gets a <br> . This is good.
But when the user presses Enter alone, the div gets <div></div> tags.
Therefore I try to make it so that when Enter is pressed, javascript scans the div's html to eliminate the </div> and change the <div> for <br> . The result will be that regardless of whether the user presses SHIF+Enter or Enter, the div's html will end up using only <br> for linebreaks.
<head>
<script type="text/javascript">
function doStuff(e){
if (window.event.keyCode == 13) {
var s=document.getElementById("divv").innerHTML;
s.replace("<div>", "<br>");
s.replace("</div>", "");
document.getElementById("divv").innerHTML=s;
}
document.getElementById("txtt").value = document.getElementById("divv").innerHTML;
}
</script>
</head>
<body>
<div contenteditable="true" id="divv" onKeyUp=doStuff(event);">
write here! Then press enter!
</div>
<textarea id="txtt" rows="30" cols="100">
</textarea>
</body>
My code doesn't work. When Enter is pressed, The textArea still shows div tags.
I'm not sure what I'm doing wrong. Please help.
3 answers
solution1
3 ACCPTED 2010-11-26 19:16:29
The replace() method does not modify the string it's called on, it returns a new string with the occurrences replaced.
You can do something like:
var divv = document.getElementById("divv");
divv.innerHTML = divv.innerHTML.replace("<div>", "<br>").replace("</div>", "");
solution2
2 2010-11-26 19:18:02
Usually browsers will have innerHTML store tags as <DIV> and </DIV> - you could try using:
s = s.replace(/<div>/ig,"<br>");
s = s.replace(/<\/div>/ig,"");
solution3
0 2010-11-26 19:20:37
Firstly, if you use xhtml, you must use tag "< br / >".
Also draw attention on str.replace: it replaces only once.
js> var x = "hello";
js> x.replace("l", "L");
heLlo
Make your replace implementation:
js> function myreplace(str, pattern, change_to) {
var s = str;
var s2 = s;
do {
s2 = s;
s = s.replace(pattern, change_to);
} while (s2 != s);
return s;
}
js> myreplace("helllllo", "l", "L");
heLLLLLo
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