Multi‑Line String in Node.js

Find out clean multi-line strings in Node.js via ES6 template literals or join arrays. Improve readability and eliminate escape complexity.

Published On 17 Jul, 2025

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Use ES6 template literals to write multi-line strings cleanly in Node.js. Skip \n and messy concatenations and get readable and maintainable code fast.

Problem Statement

Defining multi‑line strings via concatenation or \n sequences can make code cluttered and hard to maintain. You need a clear, readable way to write text blocks in Node.js.

Solution

With ES6+, Node.js supports template literals using backticks, allowing natural multi‑line strings and easy interpolation:

const num = 5;const msg = ` Line one Line two: number is ${num} Line three `; console.log(msg);

This outputs the text exactly as typed—line breaks included—without manual newline characters.

For Node.js versions before ES6, you can use line continuations with backslashes:

const old = 'Line one \Line two';

But note that these don’t preserve actual newlines.

Also Read: Node.js Developer Hourly Rate

Alternatively, for dynamic content, build an array and join it:

const lines = ['Line one', `Line two: ${num}`, 'Line three'];const msg = lines.join('\n');

You can also store larger text in external files (.txt, .md) and load them—keeping code and content separate.

Conclusion

Use template literals for most scenarios—they balance simplicity and maintainability. When content is dynamic or stored externally, combine arrays with .join() or load from files. No more manual escapes or messy code!

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