JavaScript でテンプレート リテラルをマスターする

const name = "Alice";
const age = 25;
const greeting = `Hello, my name is ${name} and I am ${age} years old.`;
console.log(greeting);
// Output: Hello, my name is Alice and I am 25 years old.

const x = 10;
const y = 20;
console.log(`The sum of x and y is ${x + y}.`);
// Output: The sum of x and y is 30.

const multiLine = `This is a string
that spans multiple lines
using template literals.`;
console.log(multiLine);
// Output:
// This is a string
// that spans multiple lines
// using template literals.

const add = (a, b) => a + b;
console.log(`The result of 5 + 10 is ${add(5, 10)}.`);
// Output: The result of 5 + 10 is 15.

function tag(strings, ...values) {
  console.log(strings); // Array of string literals
  console.log(values);  // Array of expression values
  return "Custom output";
}

const result = tag`Hello, ${name}. You are ${age} years old.`;
console.log(result);
// Output:
// ["Hello, ", ". You are ", " years old."]
// ["Alice", 25]
// Custom output

const str = `Here is a backtick: \``;
console.log(str);
// Output: Here is a backtick: `

const name = "Alice";
const html = `<div>
  <h1>${name}'s Profile</h1>
  <p>Welcome to the profile page of ${name}.</p>
</div>`;
console.log(html);
// Output:
// <div>
//   <h1>Alice's Profile</h1>
//   <p>Welcome to the profile page of Alice.</p>
// </div>

const x = 42;
console.log(`The value of x is: ${x}`);
// Output: The value of x is: 42