In TypeScript, printing a new line to the console or incorporating a new line into a string is straightforward. This guide will show you different methods to achieve this.

Using \n for a new line

The most common method to insert a new line in a string in TypeScript (and in most programming languages) is by using the newline character \n.

In a console log:

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console.log("This is the first line.\nThis is the second line.");

When executed, this will display:

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This is the first line.
This is the second line.

In a string variable:

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let multiLineString = "Hello,\nWorld!";
console.log(multiLineString);

Using template literals

Introduced in ECMAScript 2015 (ES6), template literals provide a convenient way to create multi-line strings without needing to use the \\n character. They're wrapped in backticks (``) instead of the usual single (' ') or double (" ") quotes.

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let multiLineString = `This is the first line.
This is the second line.`;
console.log(multiLineString);

Printing to HTML content

If you're using TypeScript with a web framework and you want to insert a new line into HTML content, the newline character \n won't work. Instead, you'd use the HTML line break tag <br>.

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let htmlString = "This is the first line.<br>This is the second line.";
document.getElementById("myElement").innerHTML = htmlString;

String concatenation

You can also concatenate strings and the newline character \n to produce multi-line strings:

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let line1 = "This is the first line.";
let line2 = "This is the second line.";
let multiLineString = line1 + "\n" + line2;
console.log(multiLineString);

Final thoughts

Printing a new line in TypeScript is as easy as knowing which character or method to use based on your application's needs. Whether you're printing to the console, creating a string variable, or interacting with the DOM, you have several methods at your disposal to effectively manage new lines.