Javascript array join new line

From this question, this ...

lines = foo.value.split[/\r\n|\r|\n/];

is one way to split a string, but how do I join it back with newlines?

Also, I wonder if I is say linux which uses whichever newline character, then switch to windows, won't my web app break? The newlines become not recognized? Or maybe the browser does some conversion?

asked Dec 1, 2010 at 3:54

Jiew MengJiew Meng

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If you want to join using newline characters, just do:

lines.join["\r\n"];

But if you want to display on the HTML page, you'd want to wrap each line in

html = "
" + lines.join["
"] + "
";

answered Dec 1, 2010 at 3:59

David TangDavid Tang

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2

You can use the Array object's join method to glue together array elements into a string:

lines.join["\r\n"];

In CSS: remember to use

white-space: pre;

Syntle

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answered Dec 1, 2010 at 3:56

Jacob RelkinJacob Relkin

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2

Split it on /\r?\n/, in case the string includes the carriage returns with newlines.

join it with '\n', in any browser and any os.

answered Dec 1, 2010 at 4:23

1

As said, join is the best, but here is the hard way [untested, I hope it's not too trivial]:

var result;

for [i=0;i