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Split Strings Into Line Array

Beginner

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Introduction

In this lab, we will explore how to split a multiline string into an array of lines using JavaScript. We will use the String.prototype.split() method and a regular expression to match line breaks and create an array of individual lines. This will be a useful skill for parsing and manipulating text data in web development projects.

How to Start Practicing Coding in Terminal/SSH

To start practicing coding in Terminal/SSH, simply type node.

Splitting a Multiline String into an Array of Lines

To split a multiline string into an array of lines:

  • Use String.prototype.split() and a regular expression to match line breaks and create an array.
  • The regular expression /\r?\n/ matches both \r and \n line breaks.
  • This will return an array of lines.
const splitLines = (str) => str.split(/\r?\n/);

splitLines("This\nis a\nmultiline\nstring.\n");
// ['This', 'is a', 'multiline', 'string.' , '']

Summary

Congratulations! You have completed the Split Into Lines lab. You can practice more labs in LabEx to improve your skills.