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I want to count the number of lines in a string
i tried to use this stackoverflow answer :
lines = str.split("\r\n|\r|\n"); return lines.length; on this string(which was originally a buffer):
GET / HTTP/1.1 Host: localhost:8888 Connection: keep-alive Cache-Control: max-age=0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/535.2 (KHTML,like Gecko) Chrome/15.0.874.121 Safari/535.2 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 and for some reason i got lines='1'.
any idea how to make it work?
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In JavaScript, we can count the string occurrence in a string by counting the number of times the string present in the string. JavaScript provides a function match(), which is used to generate all the occurrences of a string in an array.
Divide the Element's Height by its Line Height To get the number of lines in an element, we can divide the element's height by its line-height. Then we can do the computation by writing: const el = document. querySelector('div'); const divHeight = +el.
To get the number of lines in a textarea using JavaScript, we can call split on the input value of the textarea by the newline character. Then we get the length of the returned string array.
Using a regular expression you can count the number of lines as
str.split(/\r\n|\r|\n/).length Alternately you can try split method as below.
var lines = $("#ptest").val().split("\n"); alert(lines.length); working solution: http://jsfiddle.net/C8CaX/
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