How to remove all line breaks from a string

Question

I have a text in a textarea and I read it out using the .value attribute.

Now I would like to remove all linebreaks (the character that is produced when you press

Answer 1

var str = "bar\r\nbaz\nfoo";

str.replace(/[\r\n]/g, '');

>> "barbazfoo"

Answer 2

On mac, just use \n in regexp to match linebreaks. So the code will be string.replace(/\n/g, ''), ps: the g followed means match all instead of just the first.

On windows, it will be \r\n.

Answer 3

The simplest solution would be:

let str = '\t\n\r this  \n \t   \r  is \r a   \n test \t  \r \n';
str.replace(/\s+/g, ' ').trim();
console.log(str); // logs: "this is a test"

.replace() with /\s+/g regexp is changing all groups of white-spaces characters to a single space in the whole string then we .trim() the result to remove all exceeding white-spaces before and after the text.

Are considered as white-spaces characters:
[ \f\n\r\t\v​\u00a0\u1680​\u2000​-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff]

Answer 4

To remove new line chars use this:

yourString.replace(/\r?\n?/g, '')

Then you can trim your string to remove leading and trailing spaces:

yourString.trim()