Delete a line of text in javascript

Question

In javascript, If i have a text block like so

Line 1 Line 2 Line 3 

What would i need to do to lets say delete the first line and turn it into:

Line 2 Line 3 

Answer 1

The cleanest way of doing this is to use the split and join functions, which will let you manipulate the text block as an array of lines, like so:

// break the textblock into an array of lines var lines = textblock.split('\n'); // remove one line, starting at the first position lines.splice(0,1); // join the array back into a single string var newtext = lines.join('\n'); 

Answer 2

This removes the first line from a multi-line string variable - tested in Chrome version 23 on a variable which was read from file (HTML5) with line endings/breaks that showed as CRLF (carriage return + line feed) in Notepad++:

var lines = `first second third`;  // cut the first line: console.log( lines.substring(lines.indexOf("\n") + 1) );  // cut the last line: console.log( lines.substring(lines.lastIndexOf("\n") + 1, -1 ) )