how to delete new line in strings javascript code example

Example 1: javascript remove line breaks from string

var stringWithLineBreaks = `
O boy 
I've got 
Breaks
`;
var stringWithoutLineBreaks = stringWithLineBreaks.replace(/(\r\n|\n|\r)/gm, "");//remove those line breaks

Example 2: Remove line breaks with JavaScript

String.replace(/(\r\n|\n|\r)/gm," ")

Example 3: javascript remove final newline from string

// Remove the trailing newline(s) from a string
str.replace(/\n*$/, "");