JavaScript: Split a multiline string into an array of lines

JavaScript fundamental (ES6 Syntax): Exercise-139 with Solution

Split Multiline String to Array

Write a JavaScript program 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.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2

// Define the 'splitLines' function that splits a string into an array of lines.
const splitLines = str => str.split(/\r?\n/);

// Test the 'splitLines' function with a multiline string.
console.log('Original string:');
console.log('This\nis a\nmultiline\nstring.\n');
console.log(splitLines('This\nis a\nmultiline\nstring.\n'));

Output:

Original string:
This
is a
multiline
string.

["This","is a","multiline","string.",""]

Visual Presentation:

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-139-1 by w3resource (@w3resource) on CodePen.

For more Practice: Solve these Related Problems:

• Write a JavaScript program that splits a multiline string into an array of individual lines.
• Write a JavaScript function that processes a string with newline characters and returns an array where each element is a line.
• Write a JavaScript program that trims and splits a block of text by line breaks into an array of strings.

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