JavaScript Replace Carriage Return and Newline

JavaScript Replace Carriage Return and Newline | This tutorial will show you how to eliminate line breaks from Javascript. Want to make a “flat string” in Javascript by eliminating all line breaks? In fact, there are a few approaches to take:

1. String.replace(/\r?\n|\r/, "");
2. String.replace(/\r/g, "").replace(/\n/g, "");

The fundamentals should be covered, but if you want more specific examples, keep reading!

JavaScript Replace Carriage Return and Newline Using replace()

Everyone on the Internet, including me, seems to endorse this approach the most. Replace(/r?n|r/, “”) will be used to eliminate all line breaks because regular expressions are a huge bag of worms.

// String
var str = "JavaScript\r\ is a \r\n very popular\n language\r";
console.log("Original:", str);

// Strip first line break
var nobreak = str.replace(/\r?\n|\r/, "");
console.log("Output: ", nobreak);

Output:-

is a al: JavaScript
very popular
language
Output: JavaScript is a
very popular
language

// String
var str = "JavaScript\r\ is a \r\n very popular\n language\r";
console.log("Original:", str);

// Strip all line break
var nobreak = str.replace(/\r?\n|\r/g, "");
console.log("Output: ", nobreak);

Output:-

is a al: JavaScript
very popular
language
Output: JavaScript is a very popular language

An alternative method for removing line breaks is to replace all ‘\r’ and ‘\n’ characters with an empty string.

var str = "JavaScript\r\ is a \r\nvery popular\n language\r";
console.log("Original:", str);

str = str.replace(/\r/g, "").replace(/\n/g, "");
console.log("Output: ", str);

Output:-

is a al: JavaScript
very popular
language
Output: JavaScript is a very popular language

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