What are template literals

Template literals or template strings are string literals allowing embedded expressions. These are enclosed by the back-tick (`) character instead of double or single quotes. In ES6, this feature enables using dynamic expressions as below,

  var greeting = `Welcome to JS World, Mr. ${firstName} ${lastName}.`;

In ES5, you need break string like below,

  var greeting = 'Welcome to JS World, Mr. ' + firstName + ' ' + lastName.`

Note: You can use multi-line strings and string interpolation features with template literals.