How to replace an HTML
with newline character "\n"?

Question

How can I replace HTML  or  with new line character "\n"

@Polynomial Yeah, you're right. Still the answer is to be found a dozen of times on SO. http://stackoverflow.com/questions/7672460/change-br-to-n-r-in-firefox-and-chrome — GolezTrol, Nov 09 '11 at 08:58
possible duplicate of [jQuery javascript regex Replace
with \n](http://stackoverflow.com/questions/5959415/jquery-javascript-regex-replace-br-with-n) (includes answers that do not involve jQuery) — mercator, Nov 09 '11 at 09:09
Sometimes simple mistake happens like : Some one can use "" , in this case use replace(//ig, "\r\n") — eegloo, Nov 11 '13 at 10:23

score 59 · Accepted Answer · edited May 06 '21 at 07:14

59

You're looking for an equivilent of PHP's nl2br(). This should do the job:

function br2nl(str) {
    return str.replace(/<br\s*\/?>/mg,"\n");
}

edited May 06 '21 at 07:14

Christoph Kluge

1,844
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answered Nov 09 '11 at 08:55

Polynomial

26,720
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2

PHP doesn't have a function called `br2nl`. – mercator Nov 09 '11 at 09:11
6

Haha, oops. Good catch. I meant the inverse of `nl2br()`. Though it really *should* have that function :( – Polynomial Nov 09 '11 at 09:13
1

Sometimes simple mistake happens like : Some one can use "" , in this case use replace(//ig, "\r\n") – eegloo Nov 11 '13 at 10:24

score 1 · Answer 2 · answered Sep 11 '17 at 10:07

1

A cheap function:

function brToNewLine(str) {
    return str.replace(/<br ?\/?>/g, "\n");
}

es.

vat str = "Hello<br \>world!";
var result = brToNewLine(str);

The result is: "Hello/nworld!"

answered Sep 11 '17 at 10:07

Prais

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score 1 · Answer 3 · answered Dec 19 '18 at 10:32

This function considers whether to remove or replace the tags such as  ,  ,  , .

/**
 * This function inverses text from PHP's nl2br() with default parameters.
 *
 * @param {string} str Input text
 * @param {boolean} replaceMode Use replace instead of insert
 * @return {string} Filtered text
 */
function br2nl (str, replaceMode) {   

  var replaceStr = (replaceMode) ? "\n" : '';
  // Includes <br>, <BR>, <br />, </br>
  return str.replace(/<\s*\/?br\s*[\/]?>/gi, replaceStr);
}

In your case, you need to use replaceMode. For eaxmple: br2nl('1st 2st', true)

Demo - JSFiddle

JavaScript nl2br & br2nl functions

How to replace an HTML
with newline character "\n"?

3 Answers3

Linked

How to replace an HTML with newline character "\n"?

3 Answers3

Linked

How to replace an HTML
with newline character "\n"?