In TypeScript, you can concatenate strings using the + operator or the string interpolation syntax ${}. Here are some examples:
// Using the + operator
let firstName = "John";
let lastName = "Doe";
let fullName = firstName + " " + lastName;
console.log(fullName); // "John Doe"
// Using the string interpolation syntax ${}
let city = "New York";
let state = "NY";
let address = 123 Main St, ${city}, ${state};
console.log(address); // "123 Main St, New York, NY"
In the first example, we declare two variables firstName and lastName, and then concatenate them into fullName using the + operator and a space character as a delimiter.
In the second example, we declare two variables city and state, and then use the string interpolation syntax ${} to insert their values into a template string for address. The backticks ( ) are used to enclose the template string.