Javascript new line

In JavaScript, there are a few ways to represent a new line:

1. Using the \n character: You can use the \n character to represent a new line. For example:

   var myString = "Hello\nWorld!";

   This will output:

   Hello
   World!

2. Using the <br> tag: You can use the <br> tag to represent a new line. For example:

   var myString = "Hello<br>World!";

   This will output:

   Hello
   World!

   Note that the <br> tag is only valid in HTML contexts, not in plain text.

3. Using the \r\n characters: On Windows, you can use the \r\n characters to represent a new line. For example:

   var myString = "Hello\r\nWorld!";

   This will output:

   Hello
   World!

   Note that \r\n is only necessary on Windows, as other operating systems use different newline characters.

4. Using the String.prototype.split() method: You can use the split() method to split a string into an array of substrings, using a newline character as the separator. For example:

   var myString = "Hello\nWorld!";
   var lines = myString.split("\n");
   console.log(lines); // Output: ["Hello", "World!"]

5. Using the String.prototype.replace() method: You can use the replace() method to replace newline characters with a new line. For example:

   var myString = "Hello\nWorld!";
   var newLine = myString.replace(/\n/g, "<br>");
   console.log(newLine); // Output: "Hello<br>World!"

   Note that the \n character is replaced with <br> in this example, which is only valid in HTML contexts.