Which method is used to merge two strings in JavaScript?

To merge two strings in JavaScript, you can use the concatenation operator (+) or the concat() method. Here are the steps to merge two strings using each method:

Using the concatenation operator (+):

1. Declare two string variables, let's say string1 and string2, and assign them the desired values.
2. Create a new variable, let's say mergedString, and assign it the value of string1 concatenated with string2 using the + operator.
3. The mergedString variable now contains the merged result of string1 and string2.

Example:

let string1 = "Hello";
let string2 = "World";
let mergedString = string1 + string2;
console.log(mergedString); // Output: "HelloWorld"

Using the concat() method:

1. Declare two string variables, string1 and string2, and assign them the desired values.
2. Create a new variable, let's say mergedString, and assign it the value of string1 concatenated with string2 using the concat() method.
3. The mergedString variable now contains the merged result of string1 and string2.

Example:

let string1 = "Hello";
let string2 = "World";
let mergedString = string1.concat(string2);
console.log(mergedString); // Output: "HelloWorld"

Both methods achieve the same result of merging two strings in JavaScript.