Template String

var name="Hemant", 
    loc = "Hyderabad";

var str = `
    my name is ${name}, 
    I am stying in ${loc}`;

console.log(str);

// output
    my name is Hemant, 
    I am stying in Hyderabad

Use Case 1 ( variable manipulation )

var x =1, y=2;

var str = `sum of 
    ${x} + ${y} = ${x +y}
`;

console.log(str);

// output
sum of 
    1 + 2 = 3

Use Case 2

var x =1, y=2;

var str = ` Today's date is
    ${new Date()}
`;

// output
 Today's date is
    Sun Dec 06 2015 17:36:32 GMT+0530 (India Standard Time)