How Does JavaScript Handle String Interpolation?

String Interpolation in JavaScript

String interpolation is the process of inserting the value of a variable into a string. In JavaScript, one common way to do this is string concatenation. For example, the following code uses string concatenation to insert the value of the variable age into a string:

var age = 3;

console.log("I'm " + age + " years old!");

However, in ES6, JavaScript introduced a new feature called template literals, which provide a more concise and modern way to insert variables into strings. Template literals are enclosed in backticks () instead of quotation marks, and they allow you to use placeholders ($`) within the string to insert the values of variables.

To use template literals for string interpolation, simply wrap the placeholder with ${} and place the variable name inside, as shown in the following example:

const age = 3;

console.log(`I'm ${age} years old!`);

This code will produce the same output as the previous example, but it is more concise and easier to read.

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