In JavaScript - ECMAScript 2021, you can concatenate strings using the string concatenation operator + or the template literal syntax.
Here are examples of string concatenation using both methods:
1. Using the + operator:
let firstName = "John";
let lastName = "Doe";
let fullName = firstName + " " + lastName;
console.log(fullName); // Output: "John Doe"
2. Using template literals:
let firstName = "John";
let lastName = "Doe";
let fullName = ${firstName} ${lastName};
console.log(fullName); // Output: "John Doe"
In the second example, the ${} syntax is used to embed variables within the string. This method provides a cleaner and more readable way of concatenating strings.