Do we need to use semicolons in JavaScript?

In JavaScript, Semicolons are optional. Simple statements in JavaScript are generally followed by a semicolon character, just as they are in C, C++, and Java. JavaScript, however, allows you to omit this semicolon if each of your statements is placed on a separate line. It is a good programming practice to use semicolons.

For example, the following code could be written without semicolon.

But when formatted in a single line as follows, you must use semicolons −